Primidone
benign essential trem
"I've recently been diagnosed with Essential tremor so started on primidone (50 mg 2X day) and inderol (20 mg 2X day) for 2 1/2 weeks. Tremors initially subsided, but now they are back today as well as struggling with gait again. My jaw feels like it wants to "lock" or a "stiffness".  Looking for a second opinion at this time."