Phenergan (Promethazine hydrochloride 10 mg)

Phenergan (promethazine hydrochloride) is a first-generation H1 antihistamine used to relieve bothersome allergy symptoms such as sneezing, runny nose, itchy or watery eyes, and skin itching.

Compared with many “non-drowsy” antihistamines, it has a stronger sedating effect, which can be helpful when allergies disrupt sleep, but it also means you should use extra caution with driving or tasks that require focus.

Phenergan may also be used for nausea, vomiting, and motion sickness, making it a practical option for patients who experience both allergy flare-ups and travel-related discomfort. Common effects can include drowsiness, dry mouth, dizziness, and blurred vision, especially after the first doses or when combined with alcohol or other sedatives.

Use this medication only as directed by a healthcare professional, and seek medical advice if you develop severe reactions, unusual confusion, or breathing problems.