- Tacrolimus
- Tamoxifen
- Telmisartan
- Temazepam
- Teniposide
- Terazosin
- Terbinafine
- Terbutaline
- Terconazole
- Terfenadine
- Terpin Hydrate
- Tetanus/Diphtheria Toxoids (Adult)
- Tetrabenazine
- Tetracycline
- Thalidomide
- Theophylline
- Thiabendazole
- Thiamine
- Thioguanine
- Thiopropazate
- Thioridazine
- Thiotepa
- Thiothixene
- Thiphenamil
- Thyroglobulin
- Thyroid
- Thyrotropin
- Ticarcillin
- Timolol
- Tinzaparin
- Tobramycin
- Tocainide
- Tolazamide
- Tolazoline
- Tolbutamide
- Tolmetin
- Tramadol
- Trandolapril
- Tranexamic Acid
- Tranylcypromine
- Trazodone
- Tretinoin (Systemic)
- Tretinoin (Topical)
- Triamcinolone
- Triamterene
- Triazolam
- Trichlormethiazide
- Tridihexethyl
- Trientine
- Trifluoperazine
- Triflupromazine
- Trihexyphenidyl
- Trimeprazine
- Trimethadione
- Trimethaphan
- Trimethobenzamide
- Trimethoprim
- Trimetrexate
- Tripelennamine
- Triprolidine
- Troglitazone
- Troleandomycin
- Trovafloxacin
- Tyropanoate
