List of Medicines K | List of Medicines L | List of Medicines M | List of Medicines O |
| Nabumetone | Nabumetone is a non-steroidal anti-inflammatory drug (NSAID) of the arylalkanoic acid family | 
| Nadroparin Calcium | Nadroparin is a form of low molecular weight heparin. | 
| Nalidixic Acid | Nalidixic acid is a synthetic quinolone antibiotics | 
| Naloxone | Naloxone is a drug used to counter the effects of opioid overdose | 
| Naltrexone | Naltrexone is an opioid receptor antagonist used primarily in the management of alcohol dependence and opioid dependence. | 
| Nandrolone | Nandrolone (19-nortestosterone) is an anabolic steroid | 
| Naproxen | Naproxen is a nonsteroidal anti-inflammatory drugs (NSAIDs) | 
| Natamycin | Natamycin is a naturally occurring antifungal agent | 
| Nateglinide | Nateglinide is a drug for the treatment of type 2 diabetes | 
| Nebivolol | Nebivolol is a ß1 receptor blocker with nitric oxide-potentiating vasodilatory effect used in treatment of hypertension | 
| Nelfinavir | Nelfinavir (Viracept) is an antiretroviral drug used in the treatment of the HIV | 
| Neostigmine | Neostigmine is a parasympathomimetic | 
| Netilmicin | Netilmicin is a member of the aminoglycoside family of antibiotics | 
| Nevirapine | iIt is a non-nucleoside reverse transcriptase inhibitor (NNRTI) used to treat HIV-1 infection | 
| Nicergoline | Nicergoline is an ergoloid mesylate derivative used to treat senile dementia and other disorders with vascular origins | 
| Niclosamide | Niclosamide is a teniacide (“tenia-” referring to tapeworm) in the anthelmintic family | 
| Nicorandil | Nicorandil is a vasodilator prescribed for the treatment and management of angina pectoris | 
| Nicotine | Nicotine is an alkaloid | 
| Nicotinic Acid | Niacin, also known as vitamin B3 or nicotinic acid | 
| Nifedipine | Nifedipine is a dihydropyridine calcium channel blocker | 
| Nimesulide | Nimesulide is a relatively COX-2 selective, non-steroidal anti-inflammatory drug (NSAID) with analgesic and antipyretic properties | 
| Nitrazepam | Nitrazepam is a type of benzodiazepine drug | 
| Nimodipine | Nimodipine is a dihydropyridine calcium channel blocker | 
| Nitazoxanide | |
| Nitrofural | Nitrofural is a nitrofuran derivative bactericidal against a wide spectrum of gram-negative and gram-positive bacteria | 
| Nitrofurantoin | Nitrofurantoin is an antibiotic | 
| Nonoxinol-9 | Nonoxinol-9, or N-9, is a non-ionic nonoxynol surfactant | 
| Norepinephrine | Noradrenaline or norepinephrine is a catecholamine with dual roles as a hormone and a neurotransmitter | 
| Norethisterone | Norethisterone (or norethindrone) (or 19-nor-17a-ethynyltestosterone) is a molecule used in some combined oral contraceptive pills and in some progestogen only pills. | 
| Norfloxacin | Norfloxacin is a synthetic chemotherapeutic agent | 
| Nortriptyline | Nortriptyline is a second-generation tricyclic antidepressant | 
| Nimesulide + Racemethionine | |
| Naphazoline | It is a sympathomimetic agent with marked alpha adrenergic activity | 
| Neomycin | Neomycin is an aminoglycoside antibiotic | 
| Norfloxacin + Tinidazole | |
| Nalorphine | Nalorphine acts at two opioid receptors, at the mu receptor it has antagonistic effects and at the kappa receptors it exerts agonistic characteristics | 
| Nalbuphine | Nalbuphine is generally prescribed for the treatment of moderate to severe forms of pain such as post-surgery pain and labor pain | 
| Nystatin | Nystatin, an antifungal drug | 
| Naratriptan | Naratriptan is prescribed for the treatment of migraine attacks | 
| Nepafenac | Nepafenac, an ophthalmic, non-steroidal anti-inflammatory drug (NSAID | 
| Nicardipine | Nicardipine, a calcium-channel blocker | 
| Nizatidine | Nizatidine, a histamine-2 receptor blocker (H2 blocker), is prescribed for the treatment of erosive esophagitis and heartburn due to gastroesophageal reflux disease (GERD) | 
| Nadifloxacin | Nadifloxacin is a topical antibiotic indicated for the treatment of acne vulgaris | 
| Nafarelin | Nafarelin is indicated for the treatment of gonadotropin-dependent precocious puberty or central precocious puberty in children | 
| Nimotuzumab | Nimotuzumab, a humanized monoclonal antibody | 
| Naftopidil | Naftopidil, a novel alpha-1 adrenoreceptor antagonist | 
| Noradrenaline | Noradrenaline is prescribed to restore blood pressure in certain hypotensive states including myocardial infarction, drug interactions, sympathectomy, spinal anaesthesia and blood transfusion | 
| Niacinamide | Niacinamide, also called as nicotinamide (vitamin B3) | 
| n-butyl cyanoacrylate | n-butyl cyanoacrylate is a liquid embolic system being used for hemostasis in malformed blood vessels in the brain | 
List of Medicines K | List of Medicines L | List of Medicines M | List of Medicines O |