- Salmeterol
- Salsalate
- Samarium
- Saquinavir
- Sargramostim
- Scopolamine
- Secretin
- Selegiline
- Selenium
- Sermorelin
- Sertraline
- Sevelamer
- Sevoflurane
- Sibutramine
- Sildenafil
- Silver Sulfadiazine
- Simvastatin
- Sincalide
- Sipuleucel-T
- Sirolimus
- Skin Graft
- Sodium Ferric Gluconate
- Sodium Fluoride
- Sodium Hyaluronate
- Sodium Phosphate Monobasic Monohydrate
- Sodium Polystyrene
- Sodium Tetradecyl
- sofosbuvir
- Somatrem
- Somatropin
- Sorafenib
- Sotalol
- Sparfloxacin
- Spectinomycin
- Spironolactone
- Stanozolol
- Stavudine
- Streptokinase
- Streptomycin
- Streptozocin
- Suboxone
- Succimer
- Succinylcholine
- Sucralfate
- Sulfacetamide Sodium
- Sulfadoxine
- Sulfamethoxazole
- Sulfasalazine
- Sulfathiazole
- Sulfinpyrazone
- Sulindac
- Sulphonamides
- Sumatriptan
- Sunitinib
- Suvorexant
Also see:
- ..Salbutamol(1)
- ..Sandostatin(1)
- ..Sarafem(2)
- ..Scopace(1)
- ..Seretide(1)
- ..Serevent(1)
- ..Seroquel(2)
- ..Seroxat(5)
- ..Singulair(1)
- ..Skelaxin(1)
- ..Soriatane(1)
- ..Starlix(1)
- ..Stimate(1)
- ..Sudafed(1)
- ..Survanta(1)
- ..Sustiva(1)
- ..Sutent(1)
- ..Synagis(1)
- ..Synthroid(2)