Phenergan (Promethazine) Drug Price and Information

Promethazine (Phenergan) is an antihistamine and antiemetic, prescribed for allergic conditions, prevention of motion sickness, and to control nausea and vomiting during and after surgery. It controls nausea and vomiting by changing the actions of chemicals in brain.
The information provided on this page is intended to serve as a comprehensive resource and should not be a substitute to professional medical advice. If you have concerns it is always best to speak with a healthcare professional.

Phenergan - Abbott

Phenergan  Syrup   

Generic : Promethazine
Price Updated on May 08, 2023
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Substitute/Alternative Medication to Phenergan
Emispan Plus , Phena - Kid

Drug information on Phenergan from Abbott


When is Phenergan prescribed?

It is prescribed for -

Overview of Phenergan

Note: This brand is not available in US market.


What should be the dose and frequency?

Allergy- The average oral dose is 25 mg taken before retiring; however, 12.5 mg may be taken before meals and on retiring, if necessary.
Motion Sickness- The average adult dose is 25 mg taken twice daily. The initial dose should be taken one-half to one hour before anticipated travel and be repeated 8 to 12 hours later, if necessary.
Nausea and Vomiting- Adults- The recommended dosage is 25 mg.

What are the common side effects of Phenergan

Central Nervous System : Drowsiness, blurred vision, dizziness, confusion, disorientation, weakness, ringing in the ear, incoordination, fatigue, emotion, nervousness, double vision, sleeplessness, tremors, convulsive seizures, excitement and hallucinations.

Heart : Increased or decreased blood pressure, fast/slow heart rate and faintness.

Skin : Skin inflammation, sensitivity to light and hives.

Blood : Bruising, decrease in white blood cells and platelets.

Gastrointestinal : Dry mouth, nausea, vomiting and jaundice.

Respiratory : Asthma, nasal stuffiness and respiratory depression.

How to use Phenergan?

It comes as a tablet, capsule, liquid to take by mouth, with or without food.
It also comes as rectal suppositories, to insert through the rectum.


In which conditions should Phenergan be avoided?

Contraindicated in patients with asthma, children less than 2 years, and hypersensitivity.
Avoid subcutaneous administration.

What are the Precautions needed with Phenergan

Caution should be exercised in patients with history of nervous system problems, bone marrow depression, heart problems, blood disease, increased eye pressure, low blood pressure, liver disease, ulcers, urinary obstruction, enlarged prostate, Parkinson disease, seizures, Reye syndrome, any allergy, who are taking other medications, during pregnancy and breastfeeding.

It may cause drowsiness, dizziness, or blurred vision, do not drive a car operate machinery while taking this medication.

Avoid alcohol consumption.

Patient may develop with increased risk of tissue injury, seizures and Neuroleptic malignant syndrome (NMS); if it is so consult with your doctor.

Are there any additional Precautions?

It may affect blood sugar level; monitor sugar level regularly.

At What Temperature Should it be Stored?

Store it at controlled room temperature (20º to 25ºC).

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