Article Contents ::

Details About Generic Salt ::  Phenoxyb

Main Medicine Class:: Antihypertensive,Agent for pheochromocytoma   

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

 

Drugs Class ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

Indications for Drugs ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

Drug Dose ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

Contraindication ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

Drug Precautions ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

Drug Side Effects ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

Drug Mode of Action ::  

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

Drug Interactions ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Drug Assesment ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

Drug Storage/Management ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

Drug Notes ::

(fen-ox-ee-BEN-zuh-meen HIGH-droe-KLOR-ide)
Dibenzyline
Class: Antihypertensive/Agent for pheochromocytoma

 

Action Irreversibly blocks alpha-adrenergic receptors.

 

Indications Control of episodes of hypertension and sweating in patients with pheochromocytoma. Unlabeled use(s): Treatment of micturition disorders resulting from neurogenic bladder; treatment of functional outlet obstruction and partial prostatic obstruction.

 

Contraindications Conditions in which fall in BP may be undesirable.

 

Route/Dosage

ADULTS: PO 10 mg bid initially. Usual dosage range is 20 to 40 mg bid to tid. CHILDREN: PO 1 to 2 mg/kg/day in 3 to 4 divided doses.

 

Interactions

Epinephrine: Exaggerated hypotensive response and tachycardia may occur when epinephrine, or other agents that stimulate both alpha- and beta-receptors, are given concomitantly with phenoxybenzamine.

 

Lab Test Interferences None well documented.

 

Adverse Reactions

CV: Orthostatic hypotension; tachycardia. CNS: Drowsiness; fatigue. EENT: Miosis. GI: Gastrointestinal irritation. GU: Inhibition of ejaculation. RESP: Nasal congestion.

 

Precautions

Pregnancy: Safety not established. Lactation: Undetermined. Special-risk patients: Administer drug with caution to patients with marked cerebral or coronary arteriosclerosis or renal damage. Adrenergic blocking effects may aggravate respiratory infections.

PATIENT CARE CONSIDERATIONS


 

Administration/Storage

  • Give drug with milk or in divided doses to reduce GI irritation.
  • Store in airtight container and protect from light.

 

Assessment/Interventions

  • Obtain patient history, including drug history and any known allergies.
  • Instruct patient to change position slowly, especially from lying to sitting up or standing, and to dangle and move legs before standing.
  • Assess for the following adverse reactions: Orthostatic hypotension, tachycardia, nasal congestion.
  • Assess for effectiveness (lowering of BP) periodically.
  • Take safety precautions if patient develops lightheadedness.
  • If shocklike state develops, place patient in Trendelenburg position. Notify physician and begin emergency interventions.
  • During dosage adjustments, monitor BP and pulse (eg, quality, rate, rhythm) with patient in lying and standing position for 4 days.
  • In patients with peripheral vasospastic problems, observe for improvement in skin color, temperature, and quality of peripheral pulses.
OVERDOSAGE: SIGNS & SYMPTOMS
  Orthostatic hypotension, dizziness, fainting, tachycardia, vomiting, lethargy, shock

 

Patient/Family Education

  • Advise patient to avoid alcoholic beverages.
  • Stress to patient importance of weight reduction, sodium and alcohol restriction, discontinuation of smoking, regular exercise, and behavior modification.
  • Instruct patient to avoid otc cough, cold, or allergy medications containing sympathomimetics without consulting physician.
  • Instruct patient to avoid sudden position changes to prevent orthostatic hypotension. Warn patient that taking a hot bath or shower may aggravate dizziness.
  • Inform patient that drug may cause nasal congestion and constricted pupils.
  • Advise patient that inhibition of ejaculation may occur, but reassure patient that this condition generally decreases with continued therapy.
  • Advise patient that drug may cause drowsiness, and to use caution while driving or performing other tasks requiring mental alertness.

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