Ni
Niacin (nicotinic acid)
Vitamins Niacin
deficiency of
Symptoms of Nutrient Deficiencies Niacin: Niacin Deficiency
gingivitis with
Gingivitis: Gingivitis due to Vitamin Deficiency
red tongue with
Tongue Disorders: Discoloration
excess of
Niacin: Niacin Excess
in hyperlipoproteinemia
Lipid-Lowering Drugs
Niacinamide deficiency
Hartnup Disease
Nickel, dermatitis from
Dermatitis: Contact Dermatitis Common Causes of Allergic Contact Dermatitis
Nicotinamide
see Niacin (nicotinic acid)
Nicotine
see Smoking
NICU (neonatal intensive care unit)
What Is a Neonatal Intensive Care Unit?
Niemann-Pick disease
Lipid Metabolism: Niemann-Pick Disease
Nifedipine, gingivitis and
Gingivitis: Drug-Induced Gingivitis
Night blindness
Vitamin A: Symptoms Symptoms: Night Blindness
Nightmares
Parasomnias Sleep Problems: Nightmares
Night terrors
Parasomnias Sleep Problems: Night Terrors and Sleepwalking
Nilutamide
Cancer: Hormonal Therapy
Nipple
in breastfeeding
Home (What to Expect)
discharge from
Breast Disorders: Nipple Discharge
Paget's disease of
Paget's Disease Cancer: Types Cancer: Treatment Cancer: Treatment of Specific Types of Breast Cancer
Nitazoxanide
Giardiasis: Prevention and Treatment
Nitrates
in coronary artery disease
Angina: Drug Therapy Drugs Used to Treat Coronary Artery Disease
Nitrazepam, in elderly persons
Some Drugs With Increased Risk for Older People
Nitric oxide
Persistent Pulmonary Hypertension: Treatment
Nitrites
in urine
Diagnosis: Urinalysis
Nitrofurantoin
Antibiotics
hepatitis with
Chronic Hepatitis: Causes
during pregnancy
Some Drugs That Can Cause Problems During Pregnancy
Nitrogen, in decompression sickness
Decompression Sickness
Nitrogen dioxide, inhalation of
Gas and Chemical Exposure
Nitrogen narcosis
Breathing Air Under High Pressure
Nitroglycerin
Angina: Drug Therapy Drugs Used to Treat Coronary Artery Disease Acute Coronary Syndromes (Heart Attack; Myocardial Infarction; Unstable Angina): Drug Treatment
phosphodiesterase inhibitors and
Erectile Dysfunction (ED): Drug Treatment
Nitrous oxide
Abused Inhalants That Have Medical Uses
Nits
Lice Infestation: Symptoms and Diagnosis
Nizatidine
in elderly persons
in peptic ulcer
Peptic Ulcer: Acid-reducing Drugs Drugs Used to Treat Peptic Disorders