2 doctors weighed in:
Long term side effects of phenergan (promethazine)?
2 doctors weighed in

Dr. Joseph Woods
Pathology
1 doctor agrees
In brief: Seizures, rare.
Rare side effects include seizures, and neuroleptic malignant syndrome, a life-threatening neurological disorder. This consists of muscle rigidity, fever, autonomic instability, and cognitive changes such as delirium, and is associated with elevated plasma creatine phosphokinase.

In brief: Seizures, rare.
Rare side effects include seizures, and neuroleptic malignant syndrome, a life-threatening neurological disorder. This consists of muscle rigidity, fever, autonomic instability, and cognitive changes such as delirium, and is associated with elevated plasma creatine phosphokinase.
Dr. Joseph Woods
Dr. Joseph Woods
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