Davis's Drug Guide
- S-2 (racepinephrine)
- Sabal
- Sabal Fructus
- Sabril
- S-adenosylmethionine
- Safyral
- Saizen
- Salagen
- Salazopyrin
- Salbutamol
- Salflex
- Salgesic
- salisburia adiantifolia
- Salivart
- Salix
- Salofalk
- salsify
- Salsitab
- Salvia officinalis
- sampson root
- Samsca
- Sanctura
- Sanctura XR
- Sancuso
- SandIMMUNE
- SandoSTATIN
- SandoSTATIN LAR
- SandoSTATIN LAR Depot
- Sani-Supp
- Sansert
- Santa Maria
- Saphnelo
- Saphris
- Sarafem
- Sarclisa
- Sarna HC
- Sarna Ultra
- Savaysa
- Savella
- Saw Palmetto Berry
- Saxenda
- Scemblix
- Scenesse
- Scot-Tussin Allergy DM
- Scot-Tussin Diabetes
- Scot-tussin Expectorant
- scurvy root
- Seasonique
- Sebivo
- Seconal
- Sectral
- Secuado
- Sedatuss DM
- Seizalam
- Selax
- Selzentry
- Semglee
- Senna Plus
- Senokot
- Senokot-S
- Sensipar
- Sensorcaine
- Septra
- Serax
- Serenoa repens
- Serentil
- Serevent Diskus
- Sernivo
- Serophene
- SEROquel
- SEROquel XR
- Serostim
- Serutan
- Serzone
- Sesame Street Vitamins
- Setlakin
- Seysara
- Sezaby
- Sharobel
- Shohl's Solution modified
- Siblin
- Signifor
- Signifor LAR
- Sigtab
- Siklos
- Silace
- Siladril
- Sildimac
- Silenor
- Silfedrine Children's
- Siliq
- Silkis
- Silphen
- Siltussin DAS
- Siltussin SA
- Silvadene
- Silybin
- Silymarin
- Simlandi
- Simliya
- Simpesse
- Simplicef
- Simponi
- Simponi Aria
- Simponi IV
- Simron
- Simulect
- Sinemet
- Sinemet CR
- SINEquan
- Singulair
- Sinuva
- Sirturo
- Sitavig
- Sivextro
- Skelaxin
- Skelid
- Sklice
- Skyla
- Skyrizi
- Sleep-Eze 3
- Sleepwell 2-night
- slippery root
- Slo-Mag
- Slo-Niacin
- Sloprin
- Slo-Salt
- Slow-K
- Slynd
- smellage
- Snooze Fast
- Soaanz
- Soflax
- Solaraze
- Solesta
- Solganol
- Soliqua
- Soliris
- Solodyn
- Solosec
- Soltamox
- Solu-CORTEF
- Solu-Flur
- SOLU-Medrol
- Soma
- Somatuline Autogel
- Somatuline Depot
- Somavert
- Sominex
- Sonata
- Soolantra
- Soriatane
- Sorilux
- Sorine
- Sotyktu
- Sotylize
- Sovaldi
- Sovuna
- soy lecithin
- soy protein
- Span-FF
- Sparine
- Spectracef
- Spinraza
- Spiriva
- Spiriva Handihaler
- Spiriva Respimat
- Sporanox
- Spravato
- Sprintec-28
- Spritam
- Sprix
- Sprycel
- SPS
- squaw root
- Sronyx
- SSKI
- St. Joseph Adult Chewable Aspirin
- Stadol
- Stallion
- Starlix
- Staxyn
- Steglatro
- Stelara
- Stelazine
- Stendra
- Stieprox
- Stieva-A
- Stimufend
- Stiolto Respimat
- Stivarga
- Stop
- Strattera
- Strensiq
- Streptase
- Striant
- Stribild
- stringy bark tree
- Striverdi Respimat
- Stromectol
- Sublimaze
- Sublingual B Total Liquid
- Sublinox
- Sublocade
- Suboxone
- Subutex
- Subvenite
- Sucrets Children's
- Sucrets Cough Control
- Sucrets DM
- Sucrets Maximum Strength
- Sucrets Regular Strength
- Sudafed 12 Hour
- Sudafed 24 Hour
- Sudafed Children's
- SudoGest
- SudoGest 12 Hour
- Sufenta
- Suflave
- Sular
- Sulcrate
- Sulcrate Plus
- Sulfatrim
- Sulfatrim DS
- Sulfatrim Pediatric
- Sulfizole
- Sumycin
- Sunkist
- Sunosi
- SuperChar Aqueous
- Supeudol
- Supprelin LA
- Suprax
- Suprep Bowel Prep Kit
- Surbex T
- Surbu-Gen-T
- Surfaxin
- Surmontil
- Surpass
- Surpass Extra Strength
- Surplex-T
- Survanta
- Sustiva
- Sustol
- Susvimo
- Sutent
- sweet cumin
- sweet root
- Syeda
- Sylatron
- Syllact
- Sylvant
- Symax
- Symdeko
- Symfi
- Symfi Lo
- Symjepi
- Symlin
- Symmetrel
- Sympazan
- Symphitum officinale
- Symphitum radix
- Symproic
- Symtuza
- Synacort
- Synagis
- Synalar
- Synarel
- Syndros
- Synercid
- Synribo
- Synthroid
- Syrvite