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What side effects can this medication cause?
Side effects from promethazine may include:
drowsiness
changes in blood pressure
skin reactions
blood cell changes
breathing problems
Tell your doctor if any of these symptoms are severe or do not go away:
dry mouth
drowsiness
confusion
fatigue
difficulty coordinating movements
stuffy nose
If you experience any of the following symptoms, call your doctor immediately:
vision problems
ringing in the ears
tremors
insomnia
excitement
restlessness
yellowing of the skin or eyes
skin rash
hives
swelling of the face, eyes, lips, tongue, throat, arms, hands, feet, ankles or lower legs
hoarseness
difficulty breathing or swallowing
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.
Why is this medication prescribed?
Dosage and using this medicine
What special precautions should I follow?
What should I do if I forget a dose?