Remedies
- Sabadilla
- Sabal serrulata
- Sabina
- Saccharum lactis
- Saccharum officinale
- Salicinum
- Salicylicum acidum
- Salix mollissima
- Salix nigra
- Salix purpurea
- Salolum
- Salvia officinalis
- Sambucus canadensis
- Sambucus nigra
- Sanguinaria canadensis
- Sanguinarinum
- Sanguinarinum nitricum
- Sanguinarinum tartaricum
- Sanicula aqua
- Santoninum
- Saponaria officinalis
- Saponinum
- Sarcolactic acid
- Sarothamnus scoparius
- Sarracenia purpurea
- Sarsaparilla officinalis
- Scammonium
- Scarlatinum
- Schinus molle
- Scirrhinum
- Scolopendra morsitans
- Scorpio europaeus
- Scrophularia nodosa
- Scutellaria laterifolia
- Secale cornutum
- Sedum acre
- Selenium metallicum
- Sempervivum tectorum
- Senecio aureus
- Senecio jacobaea
- Senega
- Senna
- Sepia officinalis
- Septicaeminum
- Serpentaria aristolochia
- Serum anguillae
- Silica marina
- Silicea terra
- Silphium lacinatum
- Simarouba amara
- Sinapis alba
- Sinapis nigra
- Sium latifolium
- Skatolum
- Skookum chuck aqua
- Slag silica
- Sol
- Solaninum
- Solanum arrebenta
- Solanum carolinense
- Solanum mammosum
- Solanum nigrum
- Solanum oleraceum
- Solanum pseudocapsicum
- Solanum tuberosum
- Solanum tuberosum aegrotans
- Solidago virgaurea
- Sphingurus martini
- Spigelia anthelmia
- Spigelia marilandica
- Spiraea ulmaria
- Spiranthes autumnalis
- Spongia tosta
- Squilla maritima
- Stachys betonica
- Stannum iodatum
- Stannum metallicum
- Staphisagria
- Stellaria media
- Sticta pulmonaria
- Stigmata maydis
- Stillingia silvatica
- Stramonium
- Strontium bromatum
- Strontium carbonicum
- Strontium nitricum
- Strophanthus hispidus
- Strychninum
- Strychninum phosphoricum
- Strychnos gaultheriana
- Succinum
- Sulfonalum
- Sulphur
- Sulphur hydrogenisatum
- Sulphur iodatum
- Sulphur terebinthinatum
- Sulphuricum acidum
- Sulphurosum acidum
- Sumbulus moschatus
- Symphoricarpus racemosus
- Symphytum officinale
- Syphilinum
- Syzygium jambolanum