- Tobi 
- Tobi Podhaler 
- Tobradex
- Tobraflex
- Tobramycin 
- Tobrex 
- Tocainide
- Tocilizumab 
- Tocofersolan
- tocopherol (vit E)
- Tofacitinib 
- Tofisopam
- Tofranil 
- Tofranil-PM 
- Tol-Tab 
- Tolazamide 
- Tolazoline
- Tolbutamide 
- Tolcapone 
- Tolciclate
- Tolectin 
- Tolectin 600 
- Tolectin DS 
- Tolfenamic Acid
- Tolinase 
- Tolmetin 
- Tolnaftate
- Tolnate
- Tolonidine
- Toloxatone
- Tolperisone
- Tolpropamine
- Tolrestat
- Tolsura 
- Tolterodine 
- Tolu-Sed DM
- Tolvaptan 
- Tomorrow
- Tomycine
- Tonocard
- Topamax 
- Topex
- Topical Hemo-Stat
- Topicale
- Topicale Xtra
- Topicort
- Topicycline 
- Topiragen 
- Topiramate 
- Topisulf
- Toposar 
- Topotecan 
- Toprol 
- Toradol 
- Torecan
- Toremifene 
- Torisel 
- Tornalate
- Torsemide 
- Tositumomab 
- tositumomab/iodine (131I) tositumomab
- Tosylchloramide Sodium
- Tosymra 
- Totacillin
- Totacillin-N
- Totect
- Toujeo 
- Touro A&H
- Touro Allergy
- Touro CC
- Touro DM
- Touro EX
- Touro HC
- Touro LA
- Toviaz 
- Toxi-Sorb