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Author: Admin | 2025-04-28
What is promethazine/phenylephrine used for?Promethazine/phenylephrine is commonly used to reduce nasal congestion and other symptoms from allergies or common cold.Promethazine/phenylephrine may also be used for other conditions as determined by your healthcare provider.How does promethazine/phenylephrine work (mechanism of action)?Promethazine works by blocking certain histamine receptors in the body, which helps to reduce runny nose, sneezing, congestion, and other symptoms. Phenylephrine helps reduce nasal congestion by making the blood vessels inside the nose smaller.How is promethazine/phenylephrine supplied (dosage forms)?Brands and other namesPhenergan VCPrometh VCPromethazine VCDosage forms and strengths6.25 mg/5 mg per 5 mL oral solutionHow should I store promethazine/phenylephrine?Promethazine/phenylephrine should be stored at room temperature, between 68 F to 77 F (20 C to 25 C). It can be exposed to temperatures between 59 F to 86 F (15 C to 30 C) for shorter periods of time, such as when transporting it. Store in a cool, dry place. Side Effects What are the most common side effects of promethazine/phenylephrine?The most common side effects of promethazine/phenylephrine are listed below. Tell your healthcare provider if you have any of these side effects that bother you.Drowsiness or dizzinessConfusion or blurred visionRestlessness, anxiety, or insomnia Changes in blood pressure or heart rateDry mouthWeakness or tremorNausea or vomitingThere may be other side effects of promethazine/phenylephrine that are not listed here. Contact your healthcare provider if you think you are having a side effect of a medicine. In the U.S., you can report side effects to the FDA at www.fda.gov/medwatch or by calling 800-FDA-1088. In Canada, you can report side effects to Health Canada at www.health.gc.ca/medeffect or by calling 866-234-2345.What are the serious side effects of promethazine/phenylephrine?While less common, the most serious side effects of promethazine/phenylephrine are described below, along with what to do if they happen.Severe Allergic Reactions. Promethazine/phenylephrine may cause allergic reactions, which can
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