FDA label
What is trihexyphenidyl used for?
The FDA-approved uses of trihexyphenidyl, quoted from the Indications and Usage section of its DailyMed label.
Source: DailyMed SPL label file dated 2026-10-23. Publisher page
The FDA label says: “This drug is indicated as an adjunct in the treatment of all forms of parkinsonism (postencephalitic, arteriosclerotic, and idiopathic). It is often useful as adjuvant therapy when treating these forms of parkinsonism with levodopa. Additionally, it is indicated for the control of extrapyramidal disorders caused by central nervous system drugs such as the dibenzoxazepines, phenothiazines, thiox...”
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Trihexyphenidyl Hydrochloride, tablet
Indications and Usage, quoted from the label by Actavis Pharma, Inc. (ANDA084363). Cross-references to other label sections are left out.
This drug is indicated as an adjunct in the treatment of all forms of parkinsonism (postencephalitic, arteriosclerotic, and idiopathic). It is often useful as adjuvant therapy when treating these forms of parkinsonism with levodopa. Additionally, it is indicated for the control of extrapyramidal disorders caused by central nervous system drugs such as the dibenzoxazepines, phenothiazines, thioxanthenes, and butyrophenones.
Source: DailyMed label, set id a44d7803-164d-4a67-9356-581c45de8596, version 10, effective February 2, 2024. NDC 0591-5335, one of 13 listings for this product.
Trihexyphenidyl Hydrochloride, solution
Indications and Usage, quoted from the label by PAI Holdings, LLC dba PAI Pharma (ANDA040177). Cross-references to other label sections are left out.
Trihexyphenidyl is indicated as an adjunct in the treatment of all forms of parkinsonism (postencephalitic, arteriosclerotic, and idiopathic). It is often useful as adjuvant therapy when treating these forms of parkinsonism with levodopa. Additionally, it is indicated for the control of extrapyramidal disorders caused by central nervous system drugs such as the dibenzoxazepines, phenothiazines, thioxanthenes, and butyrophenones.
Source: DailyMed label, set id 9036c9f0-6d2d-4d0f-a20e-e36f9be228f7, version 8, effective November 19, 2024. NDC 0121-0658, one of 2 listings for this product.
Questions
What is trihexyphenidyl used for?
The FDA label says: “This drug is indicated as an adjunct in the treatment of all forms of parkinsonism (postencephalitic, arteriosclerotic, and idiopathic). It is often useful as adjuvant therapy when treating these forms of parkinsonism with levodopa. Additionally, it is indicated for the control of extrapyramidal disorders caused by central nervous system drugs such as the dibenzoxazepines, phenothiazines, thiox...”
Does this page cover off-label uses or dosing?
No. This page shows only the Indications and Usage section of the FDA label. Ask a pharmacist or prescriber about dosing.