Phentolamine

Phentolamine Brand Names- OraVerse | Regitine

What is Phentolamine

Phentolamine is an alpha-adrenergic receptor antagonist.

Phentolamine is similar in action to phenoxybenzamine but is administered parenterally and has a shorter duration of action.

Approved uses of phentolamine include diagnosis of pheochromocytoma and treatment of hypertension in pheochromocytoma, prevention of tissue necrosis after norepinephrine extravasation, and reversal of soft tissue anesthesia.

Indications

  1. anesthesia reversal
  2. dermal necrosis
  3. erectile dysfunction (ED)
  4. extravasation
  5. hypertensive emergency
  6. pheochromocytoma diagnosis
  7. pheochromocytomectomy

For pheochromocytoma diagnosis

Side Effects

  1. abdominal pain
  2. angina
  3. bradycardia
  4. dental pain
  5. diarrhea
  6. dizziness
  7. ejaculation dysfunction
  8. flushing
  9. headache
  10. hypertension
  11. injection site reaction
  12. nasal congestion
  13. nausea
  14. orthostatic hypotension
  15. paresthesias
  16. priapism
  17. pruritus
  18. sinus tachycardia
  19. vomiting
  20. weakness

Monitoring Parameters

  • blood pressure
  • heart rate

Contraindications

  • acute myocardial infarction
  • angina
  • breast-feeding
  • coronary artery disease
  • myocardial infarction
  • peptic ulcer disease
  • pregnancy

Interactions

  • Acetaminophen; Chlorpheniramine; Dextromethorphan; Phenylephrine
  • Acetaminophen; Chlorpheniramine; Dextromethorphan; Pseudoephedrine
  • Acetaminophen; Chlorpheniramine; Phenylephrine; Phenyltoloxamine
  • Acetaminophen; Dextromethorphan; Guaifenesin; Phenylephrine
  • Acetaminophen; Dextromethorphan; Phenylephrine
  • Acetaminophen; Dextromethorphan; Pseudoephedrine
  • Acetaminophen; Dichloralphenazone; Isometheptene
  • Acetaminophen; Guaifenesin; Phenylephrine
  • Acetaminophen; Pseudoephedrine
  • Acrivastine; Pseudoephedrine
  • Alfuzosin
  • Ambrisentan
  • Amifostine
  • Amphetamines
  • Amyl Nitrite
  • Apomorphine
  • Aripiprazole
  • Articaine; Epinephrine
  • Asenapine
  • Avanafil
  • Baclofen
  • Beta-blockers
  • Bortezomib
  • Bosentan
  • Brexpiprazole
  • Bromocriptine
  • Brompheniramine; Carbetapentane; Phenylephrine
  • Brompheniramine; Dextromethorphan; Phenylephrine
  • Brompheniramine; Hydrocodone; Pseudoephedrine
  • Brompheniramine; Pseudoephedrine
  • Cabergoline
  • Carbetapentane; Chlorpheniramine; Phenylephrine
  • Carbetapentane; Diphenhydramine; Phenylephrine
  • Carbetapentane; Guaifenesin; Phenylephrine
  • Carbetapentane; Phenylephrine
  • Carbetapentane; Phenylephrine; Pyrilamine
  • Carbetapentane; Pseudoephedrine
  • Carbinoxamine; Dextromethorphan; Pseudoephedrine
  • Carbinoxamine; Hydrocodone; Phenylephrine
  • Carbinoxamine; Hydrocodone; Pseudoephedrine
  • Carbinoxamine; Phenylephrine
  • Carbinoxamine; Pseudoephedrine
  • Cariprazine
  • Cetirizine; Pseudoephedrine
  • Chlophedianol; Dexchlorpheniramine; Pseudoephedrine
  • Chlophedianol; Guaifenesin; Phenylephrine
  • Chlorpheniramine; Dextromethorphan; Phenylephrine
  • Chlorpheniramine; Dihydrocodeine; Phenylephrine
  • Chlorpheniramine; Dihydrocodeine; Pseudoephedrine
  • Chlorpheniramine; Guaifenesin; Hydrocodone; Pseudoephedrine
  • Chlorpheniramine; Hydrocodone; Phenylephrine
  • Chlorpheniramine; Hydrocodone; Pseudoephedrine
  • Chlorpheniramine; Phenylephrine
  • Chlorpheniramine; Pseudoephedrine
  • Co-Enzyme Q10, Ubiquinone
  • Codeine; Phenylephrine; Promethazine
  • Desloratadine; Pseudoephedrine
  • Dexchlorpheniramine; Dextromethorphan; Pseudoephedrine
  • Dexmethylphenidate
  • Dextromethorphan; Diphenhydramine; Phenylephrine
  • Dextromethorphan; Guaifenesin; Phenylephrine
  • Dextromethorphan; Guaifenesin; Pseudoephedrine
  • Dextromethorphan; Quinidine
  • Diazoxide
  • Diethylpropion
  • Dihydrocodeine; Guaifenesin; Pseudoephedrine
  • Diphenhydramine; Hydrocodone; Phenylephrine
  • Diphenhydramine; Phenylephrine
  • Dobutamine
  • Dopamine
  • Duloxetine
  • Dutasteride; Tamsulosin
  • Ephedrine
  • Epinephrine
  • Epoprostenol
  • Estradiol
  • Estradiol Cypionate; Medroxyprogesterone
  • Ethanol
  • Fexofenadine; Pseudoephedrine
  • Guaifenesin; Hydrocodone; Pseudoephedrine
  • Guaifenesin; Phenylephrine
  • Guaifenesin; Pseudoephedrine
  • Hydralazine; Isosorbide Dinitrate, ISDN
  • Hydrocodone; Phenylephrine
  • Hydrocodone; Potassium Guaiacolsulfonate; Pseudoephedrine
  • Hydrocodone; Pseudoephedrine
  • Ibuprofen; Pseudoephedrine
  • Iloperidone
  • Isocarboxazid
  • Isoproterenol
  • Isosorbide Dinitrate, ISDN
  • Isosorbide Mononitrate
  • Lofexidine
  • Loratadine; Pseudoephedrine
  • Lovastatin; Niacin
  • Lurasidone
  • Mestranol; Norethindrone
  • Methohexital
  • Methylphenidate
  • Midodrine
  • Milrinone
  • Naproxen; Pseudoephedrine
  • Nesiritide, BNP
  • Niacin, Niacinamide
  • Niacin; Simvastatin
  • Nicotine
  • Nitrates
  • Nitroglycerin
  • Nitroprusside
  • Nonsteroidal antiinflammatory drugs
  • Norepinephrine
  • Oxymetazoline
  • Pentoxifylline
  • Phendimetrazine
  • Phenelzine
  • Phentermine
  • Phentermine; Topiramate
  • Phenylephrine
  • Phenylephrine; Promethazine
  • Prilocaine; Epinephrine
  • Procainamide
  • Procaine
  • Pseudoephedrine
  • Quinidine
  • Rasagiline
  • Risperidone
  • Ritodrine
  • Sibutramine
  • Sildenafil
  • Silodosin
  • Sincalide
  • Tadalafil
  • Tamsulosin
  • Tetrabenazine
  • Tetracaine
  • Thalidomide
  • Thiopental
  • Thiothixene
  • Tizanidine
  • Trandolapril; Verapamil
  • Tranylcypromine
  • Trazodone
  • Vardenafil
  • Verapamil
  • Yohimbine
  • Ziprasidone
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