| Trihexyphenidyl |
| Trihexyphenidyl (INN) |
| Trihexyphenidyl hydrochloride (JP18/USP) <JP/US> |
| Biperiden |
| Biperiden (JAN/USP/INN) |
| Biperiden hydrochloride (JP18/USP) <JP> |
| Biperiden lactate (JAN/USP) <JP> |
| Metixene |
| Metixene (INN) |
| Methixene hydrochloride (USAN); Metixene hydrochloride (JAN) |
| Procyclidine |
| Procyclidine (INN) |
| Procyclidine hydrochloride (USP) |
| Profenamine |
| Profenamine (INN) |
| Profenamine hydrochloride (JAN) |
| Profenamine hibenzate (JAN) |
| Dexetimide |
| Dexetimide (USAN/INN) |
| Dexetimide hydrochloride |
| Phenglutarimide (INN) |
| Mazaticol |
| Mazaticol (INN) |
| Mazaticol hydrochloride hydrate (JAN) |
| Bornaprine (INN) |
| Tropatepine |
| Tropatepine (INN) |
| Tropatepine hydrochloride |
| Orphenadrine |
| Orphenadrine (INN) |
| Orphenadrine citrate (USP) <US> |
| Orphenadrine hydrochloride |
| Benzatropine |
| Benzatropine (INN) |
| Benztropine mesylate (USP); Benztropine mesilate (JAN) <US> |
| Ethybenztropine (USAN); Etybenzatropine (INN) |
| Piroheptine |
| Piroheptine (INN) |
| Piroheptine hydrochloride (JAN) <JP> |