It is an antiallergic medication. When your body is exposed to an allergen (pollen, animal dander, house dust etc.), it produces a chemical called histamine. This causes watery eyes, runny or blocked nose, sneezing, skin rashes, itching etc. Phenergan 25 Tablet works by blocking the action of histamine, thereby relieving these symptoms. It also works directly on several areas of the brain to prevent nausea/ vomiting and help you feel more relaxed.
Drowsiness, dizziness, anxiety, blurred vision, dry mouth, stuffy nose, ringing in your ears, weight gain
Promethazine is used in the treatment of nausea, vomiting, allergic conditions and motion sickness.