| Drug |
Pregnancy category |
Use during lactation |
| Salbutamol |
C |
Safe |
| Salicylic acid |
|
Safe |
| Salmeterol |
C |
Safe |
| Selegiline |
B |
Unsafe |
| Senna |
C |
Safe |
| Sertraline |
C |
Safe |
| Sildenafil |
B |
Unsafe |
| Silver sulfadiazine |
C |
Safe |
| Simethicone |
C |
|
| Simvastatin |
X |
Unsafe |
| Sodium bicarbonate |
C |
|
| Sodium citrate |
|
Safe |
| Sodium cromoglycate |
B |
Safe |
| Sodium nitroprusside |
C |
Unsafe |
| Sodium phosphate (oral) |
|
Use with caution, withhold breastfeeding for 12 hours |
| Sodium thiosulfate |
|
Safe |
| Sodium valproate |
D |
Safe |
| Somatostatin |
B |
|
| Somatropin |
B |
Use with caution |
| Sorbitol |
|
Safe |
| Sotalol |
C |
Safe |
| Sparfloxacin |
C |
|
| Spectinomycin |
B |
|
| Spironolactone |
C,D if used in pregnancy induced HTN |
Safe |
| Streptokinase |
C |
Use with caution |
| Streptomycin |
D |
Use with caution |
| Sucralfate |
B |
Safe |
| Sulbactam |
B |
|
| Sulfadiazine |
C |
Safe after 1 month of the infant |
| Sulfasalazine |
B,D if given near term |
Safe |
| Sulfamethizole |
C,D if given near term |
|
| Sulfonamides |
C |
Safe if the infant is full-term |
| Sulfur |
|
Safe(topical use) |
| Sulindac |
C |
Use with caution |
| Sumatriptan |
B |
Safe |
| Suxamethonium |
C |
Use with caution |
