- Siax Brand
- Sibelium Brand
- Sibutramine Generic
- Sicorten Brand
- Sigma Relief Brand
- Sigma Relief Junior Brand
- Sigmacort Brand
- Signifor LAR Brand
- Silatio Brand
- Sildenafil Generic
- Sildenafil Stada Brand
- Silence 悠然 Brand
- Silic 15 司力15 Brand
- Silkis 消屑樂 Brand
- Silkron Brand
- Silmazin Brand
- Silodosin Generic
- Silox-50 適樂 Brand
- Siltuximab Generic
- Silvazine Brand
- Silvederma Brand
- Silver nitrate Generic
- Silver sulfadiazine Generic
- Silvex Brand
- Silymarin Generic
- Silymarin-Quality Pharm Brand
- Simaglen 胃美健 Brand
- Simbrinza Brand
- Simcard 固醇清 Brand
- Simdax Brand
- Simepar 肝立健 Brand
- Simeprevir Generic
- Simeticone Generic
- Simfibrate Generic
- Similac Advance 雅培金護系列1號 Brand
- Similac Baby 1 雅倍心美力 Brand
- Similac Baby 1 Ready-to-Drink Brand
- Similac Baby 2 雅倍恩美力 Brand
- Similac Go & Grow 雅培金護系列2號 Brand
- Similac Isomil 雅培愛心美 Brand
- Similac Kid 雅倍恩高健 Brand
- Similac Mom 媽媽喜康素 Brand
- Similac NeoSure Brand
- Similac Toddler 雅倍恩加健 Brand
- Similac Total Comfort 1 雅培親護 1號 Brand
- Similac Total Comfort 2 雅培親護 2號 Brand
- Simplaqor Brand
- Simponi Brand
- Simponi IV Brand
- Simtec Brand
- Simtin Brand
- Simulect 舒萊 Brand
- Simvacor Brand
- Simvastatin Generic
- Simvastatin-Teva Brand
- Simvell Brand
- Simvor Brand
- Sindaxel Brand
- Sindoxplatin Brand
- Sindroxocin Brand
- Sinemet CR/Sinemet 25/100/Sinemet 25/250 Brand
- Sinequan Brand
- Singulair 善古寧 Brand
- Sinifed Brand
- Sinomarin Mini/Sinomarin Children/Sinomarin Adult 希諾寧 Brand
- Sintopozid Brand
- Siponimod Generic
- Sirdalud Brand
- Sirdupla Brand
- Sirolimus Generic
- Sirturo Brand
- Sisomicin Generic
- Sitagliptin Generic