| Warfarin | Warfarin is an anticoagulant |
| Xantinol Nicotinate | Xantinol nicotinate (or xanthinol niacinate) is a vasodilator |
| Xipamide | Xipamide is a sulfonamide diuretic drug |
| Xylometazoline Hydrochloride | Xylometazoline is a direct-acting sympathomimetic |
| Zaleplon | Zaleplon is a sedative/hypnotic, mainly used for insomnia. |
| Ziprasidone | Ziprasidone is an atypical antipsychotic |
| Zidovudine | Zidovudine is a nucleoside analog reverse transcriptase inhibitor (NRTI), a type of antiretroviral drug |
| Zinc Oxide | Zinc oxide is used to treat minor skin irritations |
| Zoledronic Acid | Zoledronic acid is a bisphosphonate |
| Zolpidem | Zolpidem is a prescription medication used for the short-term treatment of insomnia, as well as some brain disorders |
| Zonisamide | Zonisamide is a sulfonamide anticonvulsant |
| Zopiclone | Zopiclone is a non-benzodiazepine hypnotic agent used in the treatment of insomnia |
| Zuclopenthixol | Zuclopenthixol is a typical antipsychotic neuroleptic drug of the thioxanthene group |
| Zanamivir | Zanamivir an antiviral drug |
| Zotepine | Zotepine, an atypical anti-psychotic drug |
| Zaltoprofen | Zaltoprofen is a NSAID |
| Zinc + Vitamin C | Zinc + Vitamin C is prescribed as an antioxidant and to boost the immune system |
| Zinc sulfate | Zinc sulfate is indicated for the treatment and/or prevention of zinc deficiency related to alcoholism, liver cirrhosis and bowel malabsorption |
| Zinc | Zinc supplements are used for the treatment of zinc deficiency, severe diarrhoea, liver cirrhosis, alcoholism and Wilson’s disease. |