Index: NI: Merck Manual Home Edition

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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		Disorders of Lipid Metabolism: Niemann-Pick Disease

Nifedipine, gingivitis and		Gingivitis: Drug-Induced Gingivitis

Night blindness		Vitamin A: Symptoms Changes in Vision: Night Blindness

Night-eating syndrome		Obesity and the Metabolic Syndrome: Eating Disorders

Nightmares		Parasomnias Sleep Problems in Children: Nightmares

Night terrors		Parasomnias Sleep Problems in Children: Night Terrors and Sleepwalking

Nilutamide		Prostate Cancer: Hormonal Therapy

Nipple

in breastfeeding		Postdelivery Period: Breastfeeding

discharge from		Breast Disorders: Nipple Discharge What Causes Nipple Discharge?

Paget's disease of		Paget's Disease of the Nipple Breast Cancer: Types Breast 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 Particularly Likely to Cause Problems in Older People

Nitric oxide		Persistent Pulmonary Hypertension: Treatment

Nitrite

in food		Food Additives and Contaminants: Additives

Nitrites

in urine		Diagnosis of Kidney and Urinary Tract Disorders: Urinalysis

Nitrofurantoin		Antibiotics

hepatitis with		Chronic Hepatitis: Causes

during pregnancy		Some Drugs That Can Cause Problems During Pregnancy

Nitrogen dioxide, inhalation of		Gas and Chemical Exposure

Nitrogen, in decompression sickness		Decompression Sickness

Nitrogen narcosis		Gas Toxicity During Diving: Nitrogen Narcosis

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 With Medical Uses

Nits		Lice Infestation: Symptoms and Diagnosis

Nizatidine

in elderly persons		Some Drugs Particularly Likely to Cause Problems in Older People

in peptic ulcer		Peptic Ulcer: Acid-reducing Drugs Drugs Used to Treat Peptic Disorders

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