| 16571-160 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Rising Pharmaceuticals, Inc. | ANDA | Current |
| 16571-160 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Rising Pharmaceuticals, Inc. | ANDA | Current |
| 16571-161 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Rising Pharmaceuticals, Inc. | ANDA | Current |
| 16571-161 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Rising Pharmaceuticals, Inc. | ANDA | Current |
| 50090-3101 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | A-S Medication Solutions | ANDA | Current |
| 63850-0021 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Natco Pharma Limited | ANDA | Current |
| 63850-0021 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Natco Pharma Limited-Pharma Division | ANDA | Current |
| 63850-0022 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Natco Pharma Limited | ANDA | Current |
| 63850-0022 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Natco Pharma Limited-Pharma Division | ANDA | Current |
| 64725-0161 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | TYA Pharmaceuticals | ANDA | Current |
| 69452-241 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Bionpharma Inc. | ANDA | Current |
| 69452-242 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | Bionpharma Inc. | ANDA | Current |
| 70518-0569 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | REMEDYREPACK INC. | ANDA | Current |
| 70518-0569 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | REMEDYREPACK INC. | ANDA | Current |
| 70518-2878 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | REMEDYREPACK INC. | ANDA | Current |
| 70518-2878 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | REMEDYREPACK INC. | ANDA | Current |
| 70518-2880 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | REMEDYREPACK INC. | ANDA | Current |
| 70518-2880 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | REMEDYREPACK INC. | ANDA | Current |
| 70518-2880 | Trihexyphenidyl Hydrochloride | Trihexyphenidyl Hydrochloride | REMEDYREPACK INC. | ANDA | Current |