NaloxoneOpioid antagonists · Anesthesia & critical careNaltrexoneDependence-treatment medicines · CNS & mental healthNaproxenAnalgesics / NSAIDs · Pain & musculoskeletalNatamycinAntifungals · Anti-infectivesNeostigminePeri-operative / autonomic medicines · Anesthesia & critical careNeostigmine methylsulfatePeri-operative / autonomic medicines · Anesthesia & critical careNetilmicinAminoglycoside antibacterials · Anti-infectivesNevirapineAntivirals · Anti-infectivesNiclosamideAntiparasitic medicines · Anti-infectivesNicotine Polacrilex e.q to NicotineDependence-treatment medicines · CNS & mental healthNifedipineCalcium-channel blockers · CardiovascularNilotinibAntineoplastic medicines · Oncology & immunologyNitrofurantoinOther systemic antibacterials · Anti-infectivesNitroglycerinNitrates / antianginals · CardiovascularNorepinephrineVasoactive / inotropic medicines · CardiovascularNorethisteroneSex hormones / contraceptives · Reproductive & genitourinaryNorethisterone acetate + Ethinyl estradiolSex hormones / contraceptives · Reproductive & genitourinaryNorethisterone enanthateSex hormones / contraceptives · Reproductive & genitourinaryNortriptyline + FluphenazineAntipsychotics · CNS & mental healthNystatinAntifungals · Anti-infectives