phenergan common side effects
The most common side effects of Phenergan are drowsiness, dizziness, anxiety, blurred vision, dry mouth, stuffy nose, ringing in your ears, weight gain, swelling in your hands or feet, impotence, trouble having an orgasm, or constipation.
Phenergan in Detail - Patient Information: Side Effects. Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. 1  slow heart rate, weak pulse, fainting, slow breathing (breathing may stop).  constipation.