sum-sup
- sumacetamol (INN)
- sumarotene (INN)
- sumatriptan (INN)
- sumetizide (INN)
- Sumycin
- sunagrel (INN)
- suncillin (INN)
- sunepitron (INN)
- sunitinib (INN, USAN)
- sunvozertinib (INN)
- Sunlenca
- Supartz
- Supeudol
- supidimide (INN)
- Suplasyn
- suplatast tosilate (INN)
- Supprelin
- Suppress
- Suprane
- Suprax
- Suprefact
- suproclone (INN)
- suprofen (INN)
sur-suz
- suramin sodium (INN)
- Sureprin 81
- Surfak
- surfomer (INN)
- Surgam
- Surgicel
- suricainide (INN)
- suriclone (INN)
- surinabant (INN, USAN)
- Surital
- suritozole (INN)
- Surmontil
- suronacrine (INN)
- Survanta
- Sus-Phrine Sulfite-Free
- susalimod (INN)
- Suspen
- Sustaire
- Sustiva
- Susvimo
- sutezolid (USAN)
- sutilains (INN)
- suvizumab (INN)
- suvorexant (USAN)
- suxamethonium chloride (INN)
- suxemerid (INN)
- suxethonium chloride (INN)
- suxibuzone (INN)
- suzetrigine (INN, USAN)
sy
- Syfovre
- Sylvant
- Symadine
- Symbravo
- Symbyax
- symclosene (INN)
- symetine (INN)
- Symmetrel
- Synacort
- Synagis
- Synalar
- Synalgos-DC
- Synarel
- Syncurine
- Synercid
- Synkayvite
- Synophylate
- Synovalyte
- Synphasic
- Synthroid
- Syntocinon
- Syprine
- syrosingopine (INN)
- Sytobex