The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
Less Common Side Effects
- Nervousness
- Feeling restless
- Confusion
- Blurry vision
- Dry mouth
Promethazine VC serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Dangerously slow breathing: trouble breathing; bluish-colored lips, fingers, or toes
- Neuroleptic malignant syndrome (NMS): fever, sweating, stiff muscles, confusion, not aware of your surroundings, fast or irregular heartbeat
- Low blood cell counts: fever, pale skin, fast heart rate, lightheadedness, feeling unwell
- Seizures
- Extreme sleepiness
Source: DailyMed
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