Parkitrol 2 Trihexyphenidyl Hydrochloride Levodopa
ModerateThe usual dose of either trihexyphenidyl or levodopa may need to be reduced when they are taken together. Taking both medicines at the same time can increase medicine-induced involuntary movements.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.