Diseases and Disorders
- Nabumetone, for rheumatoid arthritis
- Nadolol, for hypertension
- Nafarelin (Synarel), for endometriosis
- Naloxone (Narcan), for narcotic abuse
- Naratriptan, for migraine headache
- Nasal spray, for endometriosis
- Nasopharyngoscopy, in laryngeal cancer
- Needle electromyography, in amyotrophic lateral sclerosis
- Neisseria gonorrhoeae infection
- Neostigmine, for myasthenia gravis
- Nephelometric quantitation, in multiple myeloma
- Nephrectomy, for kidney cancer
- Nephrolithiasis
- Nephrostomy, for hydronephrosis
- Nerve conduction studies, in amyotrophic lateral sclerosis
- Neurilemma
- Neurogenic bladder
- Neurogenic intestinal obstruction
- Neurological disorders, in lupus erythematosus
- Neutral protamine Hagedorn (NPH), for diabetes mellitus
- Neutra-Phos, for hypophosphatemia
- Nicotinic acid (niacin), for hyperlipoproteinemia
- Nilotinib, for chronic leukemia
- Nilutamide (Nilandron), for prostate cancer
- Nintedanib, for pulmonary fibrosis
- Nirmatrelvir, ritonavir-boosted, for COVID-19
- Nitrazine test tape, in premature rupture of membranes
- Nitrites, in urinary tract infection
- Nonfactor replacement therapy, for hemophilia
- Non-nucleoside reverse transcriptase inhibitors, for HIV
- Nonsalicylates, for pelvic organ prolapse
- Non-small cell lung cancer (NSCLC)
- Normal saline solution, for appendicitis
- Novel coronavirus disease (COVID-19)
- Nuclear scintigraphic ventilation-perfusion, in pulmonary embolism
- Nucleic acid amplification tests (NAATs), in chlamydial infections
- Nucleic acid sequence-based amplification, for HIV
- Nucleotide analog, for HIV
- Nucleotide reverse transcriptase inhibitors, for HIV