BMJ Group Medical Reference
Topiramate is a drug that's usually used to treat epilepsy. Its brand name is Topamax. In three studies of people with essential tremor, topiramate reduced tremor.
But topiramate also caused side effects. In one study, about one-third of people taking topiramate dropped out of the study because they had side effects such as loss of appetite, confusion, difficulty concentrating, nausea, weight loss, and numbness and tingling.   Also, epilepsy drugs can cause birth defects. If you're taking this drug and you are pregnant or you are thinking about getting pregnant, then talk to your doctor.
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