Phenergan: Solution for injection
Summary Information
Also see:
- Reported side effects
- Daily life interactions
How This Drug Works
Antihistamines, H1
Histamine antagonists or antihistamines are drugs that relieve allergy symptoms. Histamine is a chemical used to identify and remove substances that trigger an allergic response.
Histamine antagonists or antihistamines are drugs that relieve allergy symptoms.<br><br>Histamine is a chemical used to identify and remove substances that trigger an allergic response. Â There are four histamine receptors (designated H<sub>1</sub>, H<sub>2</sub>, H<sub>3</sub>, H<sub>4</sub>). When histamine activates H<sub>1</sub> receptors, symptoms such as rashes, itching, watery eyes and trouble breathing may begin. <br><br>Antihistamines prevent histamine from stimulating the H<sub>1</sub> receptors located in the eyes, nose and throat to relieve swelling and stop leaking fluid. Â First generation antihistamines were non-selective for H<sub>1</sub> receptors and crossed into the brain resulting in drowsiness. Â Newer antihistamines are more selective, reducing this side effect.
Frequently Asked Questions (FAQs) on Phenergan: Solution for injection
What is this medicine?
PROMETHAZINE (proe METH a zeen) is an antihistamine. It is used to treat allergic reactions and to treat or prevent nausea and vomiting from illness or motion sickness. It is also used to make you sleep before surgery, and to help treat pain or nausea after surgery.
Similar Generic Drugs :
Promethazine: Solution for injection
Drugs Related by Class to Phenergan: Solution for injection
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Class Name : Other Agents with Antihistaminic Action
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Related Generic Drugs :
Class Name : Phenothiazine Antiemetics
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In-Depth Information on This Drug
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- Reported side effects
- Daily life interactions

Patient Experiences with Phenergan
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Average Scores
Easy to Take

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Works as Intended

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5
Tolerable

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5