Primidone
benign essential trem
"I have had Essential Tremor for several years. I have been taking propranolol and clonazepam for last several years but have seen a return of tremor lately. My doctor added primidone in last month. I have been having great difficulty adjusting to medicines though. I feel like I'm spinning most of time, seems to cause increase in shakiness as medicine begins to wear off (at least that's my opinion), and has caused an inability to ejaculate. I am currently working on increasing my dosage amounts. I started at 12.5mg with intended dose of 50mg nightly as goal."