Trihexyphenidyl is a prescription drug licensed to treat parkinsonism and extrapyramidal symptoms. This eMedTV Web segment covers these uses in more detail, describes how the drug works, offers dosing information, and more.
Dizziness, dry mouth, and mild nausea are some of the most common side effects of trihexyphenidyl. This eMedTV resource also lists rare but potentially serious trihexyphenidyl side effects, such as glaucoma, fever, and severe constipation.
As this eMedTV article explains, trihexyphenidyl is used for treating extrapyramidal symptoms caused by antipsychotic drugs; it is also used to treat parkinsonism. This segment further explores these and other trihexyphenidyl uses.
For the treatment of Parkinson's disease, the starting trihexyphenidyl dosage is usually 1 mg once daily. This eMedTV page also offers trihexyphenidyl dosing recommendations for people with extrapyramidal symptoms caused by antipsychotic medications.
Pramlintide and anticholinergic drugs may cause drug interactions with trihexyphenidyl. This eMedTV article lists other drugs that may interact with trihexyphenidyl. Drug interactions may increase your risk of side effects, such as nausea or dry eyes.
Trihexyphenidyl can cause Alzheimer's-like symptoms, such as memory loss. This eMedTV Web page lists other precautions and warnings with trihexyphenidyl, including other side effects that may occur and information on who should not use this drug.
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