ICD-10-CM
- Sabadilla (plant)
- Saccharated iron oxide
- Saccharin
- Saccharomyces boulardii
- Safflower oil
- Safrazine
- Salazosulfapyridine
- Salbutamol
- Salicylamide
- Salicylate NEC
- Salicylazosulfapyridine
- Salicylhydroxamic acid
- Salicylic acid
- Salinazid
- Salmeterol
- Salol
- Salsalate
- Salt-replacing drug
- Salt-retaining mineralocorticoid
- Salt substitute
- Saluretic NEC
- Saluron
- Salvarsan 606 (neosilver) (silver)
- Sambucus canadensis
- Sandril
- Sanguinaria canadensis
- Saniflush (cleaner)
- Santonin
- Santyl
- Saralasin
- Sarcolysin
- Sarkomycin
- Saroten
- Saturnine
- Savin (oil)
- Scammony
- S-Carboxymethyl-cysteine
- Scarlet red
- Scheele's green
- Schizontozide (blood) (tissue)
- Schradan
- Schweinfurth green
- Scilla, rat poison
- Scillaren
- Sclerosing agent
- Scombrotoxin
- Scopolamine
- Scopolia extract
- Scouring powder
- Sea
- Seafood
- Secbutabarbital
- Secbutabarbitone
- Secnidazole
- Secobarbital
- Seconal
- Secretin
- Sedative NEC
- Sedormid
- Seed disinfectant or dressing
- Seeds (poisonous)
- Selegiline
- Selenium NEC
- Selenomethionine (75Se)
- Selsun
- Semustine
- Senega syrup
- Senna
- Sennoside A+B
- Septisol
- Seractide
- Serax
- Serenesil
- Serenium (hydrochloride)
- Serepax
- Sermorelin
- Sernyl
- Serotonin
- Serpasil
- Serrapeptase
- Serum
- Setastine
- Setoperone
- Sewer gas
- Shampoo
- Shellfish, noxious, nonbacterial
- Sildenafil
- Silibinin
- Silicone NEC
- Silvadene
- Silver
- Silymarin
- Simaldrate
- Simazine
- Simethicone
- Simfibrate
- Simvastatin
- Sincalide
- Sinequan
- Singoserp
- Sintrom
- Sisomicin
- Sitosterols
- Skeletal muscle relaxants
- Skin
- Sleep-eze
- Sleeping draught, pill
- Smallpox vaccine
- Smelter fumes NEC
- Smog
- Smoke NEC
- Smooth muscle relaxant
- Snail killer NEC
- Snake venom or bite
- Snuff
- Soap (powder) (product)
- Sobrerol
- Soda (caustic)
- Sodium
- Sodium-free salt
- Sodium-removing resin
- Soft soap
- Solanine
- Solanum dulcamara
- Solapsone
- Solar lotion
- Solasulfone
- Soldering fluid
- Solid substance
- Solvent, industrial NEC
- Soma
- Somatorelin
- Somatostatin
- Somatotropin
- Somatrem
- Somatropin
- Sominex
- Somnos
- Somonal
- Soneryl
- Soothing syrup
- Sopor
- Soporific
- Soporific drug
- Sorbide nitrate
- Sorbitol
- Sotalol
- Sotradecol
- Soysterol
- Spacoline
- Spanish fly
- Sparine
- Sparteine
- Spasmolytic
- Spectinomycin
- Speed
- Spermicide
- Spider (bite) (venom)
- Spigelia (root)
- Spindle inactivator
- Spiperone
- Spiramycin
- Spirapril
- Spirilene
- Spirit (s) (neutral) NEC
- Spironolactone
- Spiroperidol
- Sponge, absorbable (gelatin)
- Sporostacin
- Spray (aerosol)
- Spurge flax
- Spurges
- Sputum viscosity-lowering drug
- Squill
- Squirting cucumber (cathartic)
- Stains
- Stannous fluoride
- Stanolone
- Stanozolol
- Staphisagria or stavesacre (pediculicide)
- Starch
- Stelazine
- Stemetil
- Stepronin
- Sterculia
- Sternutator gas
- Steroid
- Stibine
- Stibogluconate
- Stibophen
- Stilbamidine (isetionate)
- Stilbestrol
- Stilboestrol
- Stimulant
- Stone-dissolving drug
- Storage battery (cells) (acid)
- Stovaine
- Stovarsal
- Stove gas
- Stoxil
- Stramonium
- Streptodornase
- Streptoduocin
- Streptokinase
- Streptomycin (derivative)
- Streptonivicin
- Streptovarycin
- Streptozocin
- Streptozotocin
- Stripper (paint) (solvent)
- Strobane
- Strofantina
- Strophanthin (g) (k)
- Strophanthus
- Strophantin
- Strophantin-g
- Strychnine (nonmedicinal) (pesticide) (salts)
- Strychnos (ignatii)
- Styramate
- Styrene
- Succinimide, antiepileptic or anticonvulsant
- Succinylcholine
- Succinylsulfathiazole
- Sucralfate
- Sucrose
- Sufentanil
- Sulbactam
- Sulbenicillin
- Sulbentine
- Sulfacetamide
- Sulfachlorpyridazine
- Sulfacitine
- Sulfadiasulfone sodium
- Sulfadiazine
- Sulfadimethoxine
- Sulfadimidine
- Sulfadoxine
- Sulfaethidole
- Sulfafurazole
- Sulfaguanidine
- Sulfalene
- Sulfaloxate
- Sulfaloxic acid
- Sulfamazone
- Sulfamerazine
- Sulfameter
- Sulfamethazine
- Sulfamethizole
- Sulfamethoxazole
- Sulfamethoxydiazine
- Sulfamethoxypyridazine
- Sulfamethylthiazole
- Sulfametoxydiazine
- Sulfamidopyrine
- Sulfamonomethoxine
- Sulfamoxole
- Sulfamylon
- Sulfan blue (diagnostic dye)
- Sulfanilamide
- Sulfanilylguanidine
- Sulfaperin
- Sulfaphenazole
- Sulfaphenylthiazole
- Sulfaproxyline
- Sulfapyridine
- Sulfapyrimidine
- Sulfarsphenamine
- Sulfasalazine
- Sulfasuxidine
- Sulfasymazine
- Sulfated amylopectin
- Sulfathiazole
- Sulfatostearate
- Sulfinpyrazone
- Sulfiram
- Sulfisomidine
- Sulfisoxazole
- Sulfobromophthalein (sodium)
- Sulfobromphthalein
- Sulfogaiacol
- Sulfomyxin
- Sulfonal
- Sulfonamide NEC
- Sulfonazide
- Sulfones
- Sulfonethylmethane
- Sulfonmethane
- Sulfonphthal, sulfonphthol
- Sulfonylurea derivatives, oral
- Sulforidazine
- Sulfoxone
- Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)
- Sulfuric acid
- Sulglicotide
- Sulindac
- Sulisatin
- Sulisobenzone
- Sulkowitch's reagent
- Sulmetozine
- Suloctidil
- Sulph-
- Sulphadiazine
- Sulphadimethoxine
- Sulphadimidine
- Sulphadione
- Sulphafurazole
- Sulphamethizole
- Sulphamethoxazole
- Sulphan blue
- Sulphaphenazole
- Sulphapyridine
- Sulphasalazine
- Sulphinpyrazone
- Sulpiride
- Sulprostone
- Sulpyrine
- Sultamicillin
- Sulthiame
- Sultiame
- Sultopride
- Sumatriptan
- Sunflower seed oil
- Superinone
- Suprofen
- Suramin (sodium)
- Surfacaine
- Surital
- Sutilains
- Suxamethonium (chloride)
- Suxethonium (chloride)
- Suxibuzone
- Sweetener
- Sweet niter spirit
- Sweet oil (birch)
- Sym-dichloroethyl ether
- Sym-Dichloroethyl ether
- Sympatholytic NEC
- Sympathomimetic NEC
- Synagis
- Synalar
- Synthetic cannabinoids
- Synthroid
- Syntocinon
- Syrosingopine
- Systemic drug