- sabadilla
- saccharomyces boulardii
- saccharum levistici
- salbutamol
- salicylamide
- salicylic acid
- salix alba
- salix purpurea
- salix viminalis
- salix vitellina
- salvia
- salvia officinalis
- salviae
- sambucus nigra
- sassafras oil
- scolopendrium
- selegiline
- selenium
- senna
- sennosides
- sertraline
- shark liver oil
- sibutramine
- siderit
- sildenafil
- silicea
- silver sulphadiazine
- simethicone
- simvastatin
- snakebite antiserum
- sodium
- sodium 2-mercaptoethanesulphonate
- sodium acetate
- sodium acid phosphate
- sodium adenosine triphosphate
- sodium alginate
- sodium amidotrizoate
- sodium amidotrizoate + meglumine amidotrizoate
- sodium ascorbate
- sodium bicarbonate
- sodium bicarbonate + dill seed oil
- sodium borate
- sodium carbonate
- sodium carboxymethylcellulose
- sodium chloride
- sodium chondroitin sulphate
- sodium citrate
- sodium cromoglycate
- sodium dichloroisocyanurate
- sodium fluoride
- sodium fusidate
- sodium glycerophosphate
- sodium hexametaphosphate
- sodium hyaluronate
- sodium iodide
- sodium molybdate
- sodium nitroprusside
- sodium oestrone sulphate
- sodium phosphate
- sodium polystyrene sulfonate
- sodium pyrrolidone carboxylate
- sodium salicylate
- sodium stearate
- sodium sulphate
- sodium tetradecyl sulphate
- somatropin
- sorbic acid
- sorbimacrogol laurate 300
- sorbitol
- sotalol
- soy isoflavones
- spectinomycin
- spike lavender oil
- spirits of camphor
- spirits of chloroform
- spironolactone
- spironolactone + isobutylhydrochlorothiazide
- squill
- starch
- stavudine
- stibium met
- stibium metallicum
- storax
- sucralfate
- sufentanil
- sulfamethoxazole
- sulfasalazine
- sulfur
- sulindac
- sulphabenzamide
- sulphacetamide
- sulphamethoxazole
- sulphanilamide
- sulphasalazine
- sulphathiazole
- sulphur
- sulpiride
- sumatriptan
- Sunitinib
- suramin
- suxamethonium chloride
- synthetic luteinizing releasing hormone
