... hard time with drowsiness, bein' more clumsy than normal, extremely forgetful, headaches but they only last 10-15 seconds, and blurred vision. I contacted the manufacturer and they couldn't even tell me how long or IF the side effects would wear off or lessen. Has anybody had any GOOD experience with the side effects ever going away? *Note... I do not have Parkinsons, but have Essential Tremors. With existing health issues and medications for them, this was the only viable med available to try... my last and ONLY hope for some relief from the constant shaking