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Top of the page- Cobicistat - Medication
- Cobimetinib - Medication
- Cocaine
- Cochlear Implant: Before Your Surgery
- Cochlear Implant: Returning Home
- Cochlear Implants
- Coconut Oil - Alternative Medicine
- Cod-Butalbital-Acetaminop-Caf - Alternative Medicine
- Codeine - Alternative Medicine
- Codeine - Medication
- Codeine Phosphate - Alternative Medicine
- Codeine-Brompheniramine-PPA - Alternative Medicine
- Codeine-Butalbital-ASA-Caff - Alternative Medicine
- Codeine-Guaifenesin - Alternative Medicine
- Coenzyme Q10
- Coenzyme Q10 - Alternative Medicine
- Coenzyme Q10 for Sports & Fitness - Alternative Medicine
- Coenzyme Q10 (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]
- Coenzyme Q10 (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]
- Coffee - Alternative Medicine
- Cognitive Behavioral Therapy for Eating Disorders
- Cognitive Behavioral Therapy for Pain Management
- Cognitive Development, Ages 1 to 12 Months
- Cognitive Development, Ages 12 to 24 Months
- Cognitive Development, Ages 15 to 18 Years
- Cognitive Development, Ages 6 to 10 Years
- Cognitive Growth in Newborns
- Cognitive Impairment in Adults With Cancer (PDQ®): Supportive care - Health Professional Information [NCI]
- Cognitive Impairment in Adults with Cancer (PDQ®): Supportive care - Patient Information [NCI]
- Colchicine - Alternative Medicine
- Colchicine - Medication
- Colchicine-Probenecid - Alternative Medicine
- Cold Agglutinins Test - Medical Test
- Cold Exposure: Emergency Equipment
- Cold Exposure: Ways the Body Loses Heat
- Cold Exposure: What Increases Your Risk of Injury?
- Cold Hands: Home Treatment
- Cold Packs for Eye Injuries
- Cold Sores
- Cold Sores (Holistic) - Alternative Medicine
- Cold Sores (Homeopathy) - Alternative Medicine
- Cold Temperature Exposure
- Colds
- Colds and Flu
- Colesevelam - Alternative Medicine
- Colesevelam - Medication
- Colestipol - Alternative Medicine
- Colestipol - Medication
- Coleus - Alternative Medicine
- Coleus for Weight Control - Alternative Medicine
- Colic
- Colic: Harmful Treatments
- Colic (Holistic) - Alternative Medicine
- Colic (Homeopathy) - Alternative Medicine
- Colistimethate Injection - Medication
- Colistimethate Sodium - Alternative Medicine
- Collagenase Clostridium histolyticum Injection - Medication
- Collapsed Lung (Pneumothorax)
- Colloidal Silver - Alternative Medicine
- Colon Cancer Prevention (Holistic) - Alternative Medicine
- Colon Cancer: Screening Tests and What the Results Mean
- Colon Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]
- Colon Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]
- Colon Polyps
- Colon polyps: Fast facts
- Colonoscopy - Medical Test
- Colonoscopy: Overview
- Color Blindness
- Colorectal Cancer
- Colorectal Cancer Genetic Testing
- Colorectal Cancer, Metastatic or Recurrent
- Colorectal Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI]
- Colorectal Cancer Prevention (PDQ®): Prevention - Patient Information [NCI]
- Colorectal Cancer Screening
- Colorectal Cancer Screening (PDQ®): Screening - Health Professional Information [NCI]
- Colorectal Cancer Screening (PDQ®): Screening - Patient Information [NCI]
- Colorectal Cancer: Which Screening Test Should I Have?
- Colostomy
- Colostomy
- Colposcopy - Medical Test
- Coltsfoot - Alternative Medicine
- Combining Breastfeeding and Bottle-Feeding
- Comfrey - Alternative Medicine
- Committing Again to Healthy Eating
- Committing to Quitting: Your Quit-Tobacco Plan
- Common Cold (Homeopathy) - Alternative Medicine
- Common Cold/Sore Throat (Holistic) - Alternative Medicine
- Common Coping Responses for Stress
- Common Questions About Giving Yourself Shots
- Common Questions About the Flu Vaccine
- Common Types of Hernias
- Communication in Cancer Care (PDQ®): Supportive care - Health Professional Information [NCI]
- Communication in Cancer Care (PDQ®): Supportive care - Patient Information [NCI]
- Comparing Artificial Sweeteners
- Comparing Rheumatoid Arthritis and Osteoarthritis
- Comparing Stop-Smoking Medicines
- Comparing Symptoms of Normal Moodiness With Depression in Children
- Complement Test - Medical Test
- Complementary Medicine
- Complementary Medicine
- Complementary Medicine for Arthritis
- Complete Blood Count (CBC) - Medical Test
- Complete Blood Count (CBC) Test: Understanding the Test
- Complex Regional Pain Syndrome
- Complications, Graft-Versus-Host Disease, and Late Effects After Pediatric Hematopoietic Stem Cell Transplant (PDQ®): Treatment - Health Professional Information [NCI]
- Complications of Ear Infections
- Complications of Enlarged Prostate
- Complications of Grief
- Complications of Lupus
- Complications of Paget's Disease
- Complications of Peptic Ulcer
- Comprehensive Metabolic Panel - Medical Test
- Comprehensive Rehabilitation Programs for Low Back Pain
- Compression Stockings for Varicose Veins
- Compression Stockings: How to Use Them
- Computed Tomography (CT) Angiogram - Medical Test
- Computed Tomography (CT) Scan of the Body - Medical Test
- Computed Tomography (CT) Scan of the Head and Face - Medical Test
- Computed Tomography (CT) Scan of the Spine - Medical Test
- Concussion (Mild Traumatic Brain Injury)
- Conditions With Symptoms Similar to Depression in Children and Teens
- Confusion, Memory Loss, and Altered Alertness
- Congenital Heart Defect Types
- Congenital Heart Disease: Caring for Your Child
- Congenital Heart Disease in Adults
- Congenital Heart Disease in Children
- Congenital Hydrocele
- Congenital Hydrocephalus
- Congenital Syphilis
- Congenital Torticollis
- Congestive Heart Failure (Holistic) - Alternative Medicine
- Conj Estrogens-Bazedoxifene - Alternative Medicine
- Conjugated Estrogens - Alternative Medicine
- Conjugated Linoleic Acid - Alternative Medicine
- Conjugated Linoleic Acid for Sports & Fitness - Alternative Medicine
- Conjugated Linoleic Acid for Weight Control - Alternative Medicine
- Conjunctivitis and Blepharitis (Holistic) - Alternative Medicine
- Conserving Your Energy
- Constipation, Age 11 and Younger
- Constipation, Age 12 and Older
- Constipation: Here's Help
- Constipation (Holistic) - Alternative Medicine
- Constipation (Homeopathy) - Alternative Medicine
- Constipation: Keeping Your Bowels Healthy
- Contact Lens Care
- Contact Lens Problems: Hypoxia
- Contact Lens Problems: Infection
- Contact Lenses
- Contact Lenses: Dry Eyes
- Continuous Glucose Monitoring
- Continuous Positive Airway Pressure (CPAP) Therapy for Obstructive Sleep Apnea
- Contraceptive Sponge for Birth Control
- Contraction Stress Test - Medical Test
- Contractions During Pregnancy: What to Expect
- Controlling Dust, Dust Mites, and Other Allergens in Your Home
- Controlling Indoor Mold
- Controlling Pet Allergens
- Coombs Test - Medical Test
- Copanlisib Injection - Medication
- COPD
- COPD Action Plan
- COPD and Sex
- COPD: Avoiding Weight Loss
- COPD: Avoiding Your Triggers
- COPD (Chronic Obstructive Pulmonary Disease)
- COPD: Clearing Your Lungs
- COPD: Eating Well for Strength and Energy
- COPD: Exercises for Building Strength
- COPD Flare-Ups
- COPD: Handling a Flare-Up
- COPD: How to Use a Nebulizer
- COPD: Keeping Your Diet Healthy
- COPD: Keeping Your Quality of Life
- COPD: Lung Volume Reduction
- COPD: Take This Chance to Quit Smoking
- COPD: Taking Medicines After a Flare-Up
- COPD: Using Exercise to Feel Better
- COPD: What Happens to Your Lungs
- COPD: You Can Still Be Active
- COPD's Effect on the Lungs
- Coping After a Traumatic Event
- Coping Strategies to Avoid Harming a Baby
- Coping When Your Child Is Near the End of Life
- Coping With Changing Sleep Patterns as You Get Older
- Coping With Osteoarthritis
- Coping With Stress
- Copper - Alternative Medicine
- Copperhead
- Coral Snake
- Cordyceps - Alternative Medicine
- Cordyceps for Sports & Fitness - Alternative Medicine
- Core Needle Breast Biopsy: Before Your Procedure
- Corneal Ring Implants for Nearsightedness
- Coronary Angiogram: Before Your Procedure
- Coronary Angiogram: How Others Decided
- Coronary Angiogram: Returning Home
- Coronary Angioplasty
- Coronary Angioplasty: Before Your Procedure
- Coronary Angioplasty: Returning Home
- Coronary Arteries and Heart Function
- Coronary Artery Bypass Surgery
- Coronary Artery Disease
- Coronary Artery Disease: 5 Ways to Help Lower Your Risk
- Coronary Artery Disease: 7 Ways to Help Lower Your Risk for a Heart Attack
- Coronary Artery Disease and Alcohol
- Coronary Artery Disease and Depression
- Coronary Artery Disease: Being Active
- Coronary Artery Disease: Commit to Making an Exercise Plan
- Coronary Artery Disease: Every Step Matters
- Coronary Artery Disease: Exercising for a Healthy Heart
- Coronary Artery Disease: Family History
- Coronary Artery Disease: Getting Back on Track
- Coronary Artery Disease: Helping a Loved One
- Coronary Artery Disease: Making Peace With Medicines
- Coronary Artery Disease: Moving Forward
- Coronary Artery Disease: Should I Have an Angiogram?
- Coronary Artery Disease: Should I Have Angioplasty for Stable Angina?
- Coronary Artery Disease: Should I Have Bypass Surgery?
- Coronary Calcium Scan - Medical Test
- Coronavirus (COVID-19)
- Corporal Punishment
- Corticotropin, Repository Injection - Medication
- Cortisol in Blood Test - Medical Test
- Cortisol in Urine Test - Medical Test
- Cortisone - Alternative Medicine
- Corydalis - Alternative Medicine
- Cosmetic Surgery and Procedures
- Co-trimoxazole - Medication
- Co-trimoxazole Injection - Medication
- Cough (Holistic) - Alternative Medicine
- Cough (Homeopathy) - Alternative Medicine
- Coughs, Age 11 and Younger
- Coughs, Age 12 and Older
- Counseling for Depression
- Counseling for Sexual Problems
- Counseling for Your Teen
- Counting Carbohydrate Grams or Servings
- COVID-19: 7 Ways to Stay Safe When You're at High Risk
- COVID-19: Advice if You're Planning a Pregnancy, Pregnant, Recently Pregnant, or Breastfeeding
- COVID-19: Caring for Someone Who Is Sick
- COVID-19 or Flu? How to Tell
- COVID-19: People Who Are at High Risk for Serious Illness
- COVID-19: Taking Care of Yourself When You Have It
- COVID-19 Vaccine, Adjuvanted - Medication
- COVID-19 Vaccine for Children
- COVID-19 Vaccine, mRNA - Medication
- COVID-19 Vaccine, Viral Vector (Janssen [Johnson and Johnson]) - Medication
- COVID-19 Vaccine: What You Need to Know
- COVID-19: Why Get the Vaccine?
- Cow's Milk Protein Allergy in Babies