Phenergan (generic name: Promethazine; brand names: Promethegan / Romergan / Fargan / Farganesse / Prothiazine / Avomine / Atosil / Receptozine / Lergigan) is a potent antihistamine with additional anti-emetic and sedative/calming properties.

Phenergan can be used for:

Perennial and seasonal allergic rhinitis
Vasomotor rhinitis
Allergic conjunctivitis due to inhalant allergens and foods
Mild, uncomplicated allergic skin manifestations of urticaria and angioedema
Amelioration of allergic reactions to blood or plasma
Dermographism
Anaphylactic reactions, as adjunctive therapy to epinephrine and other standard measures, after the acute manifestations have been controlled
Preoperative, postoperative, or obstetric sedation
Prevention and control of nausea and vomiting associated with certain types of anesthesia and surgery
Therapy adjunctive to meperidine or other analgesics for control of post-operative pain
Sedation in both children and adults, as well as relief of apprehension and production of light sleep from which the patient can be easily aroused
Active and prophylactic treatment of motion sickness
Antiemetic therapy in postoperative patients

Recommendations

Follow the directions for using this medicine provided by your doctor. Take Phenergan exactly as directed.

Allergy

The average oral dose is 25 mg taken before retiring.

Motion Sickness

The average adult dose is 25 mg taken twice daily.

Nausea and Vomiting

Antiemetics should not be used in vomiting of unknown etiology in children and adolescents. The average effective dose of Phenergan for the active therapy of nausea and vomiting in children or adults is 25 mg.

For nausea and vomiting in children, the usual dose is 0.5 mg per pound of body weight, and the dose should be adjusted to the age and weight of the patient and the severity of the condition being treated.

For prophylaxis of nausea and vomiting, as during surgery and the postoperative period, the average dose is 25 mg repeated at 4- to 6-hour intervals, as necessary.

Pre- and Postoperative Use

Phenergan in 12.5- to 25-mg doses for children and 50-mg doses for adults the night before surgery relieves apprehension and produces a quiet sleep.

Precautions

Tell your doctor before taking Phenergan, if:

you have heart, liver, kidney or prostate problems; glaucoma, epilepsy, porphyria (a blood disorder) or blood pressure problems; or you have been experiencing difficulty urinating;
you are pregnant or breast-feeding.

Ingredients

Active ingredient: promethazine.