Table showing safety of drugs in pregnancy and lactation (Drugs starting with K)
| Drug | Pregnancy category | Use during lactation |
| Kanamycin | D | |
| Ketamine | B | Unsafe |
| Ketoconazole | B | Use with caution(systemic use)Safe(topical use) |
| Ketoprofen | C | Safe |
| Ketorolac | C | Safe |
| Ketotifen | C (ophthalmic use) |
