Trihexyphenidyl other name?

What other names does trihexyphenidyl go by?

Trihexyphenidyl is also known as trihexyphenidyl hydrochloride (its common salt form) [1].

It may also appear under brand or synonym listings depending on country and manufacturer, but the most consistent “other name” you’ll see is trihexyphenidyl hydrochloride [1].

Why does it show up with “hydrochloride” in the name?

Many drug databases and prescriptions list the salt form. Trihexyphenidyl hydrochloride refers to trihexyphenidyl in hydrochloride salt form [1], which can affect how the drug is labeled (but not the active ingredient).

Sources:
[1] https://pubchem.ncbi.nlm.nih.gov/compound/Trihexyphenidyl