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Macitentan

Macitentan and Tadalafil

Mad Cow Disease and Variant Creutzfeldt-Jakob Disease

Maggie's Story: Making Changes for Her Health

Magnesium Citrate

Magnesium Gluconate

Magnesium Hydroxide

Magnesium (Mg) Test

Magnesium Oxide

Magnesium Sulfate, Potassium Sulfate, and Sodium Sulfate

Magnetic Field Therapy

Magnetic Resonance Angiogram (MRA)

Magnetic Resonance Cholangiogram

Magnetic Resonance Imaging (MRI)

Magnetic Resonance Imaging (MRI) of the Abdomen

Magnetic Resonance Imaging (MRI) of the Breast

Magnetic Resonance Imaging (MRI) of the Head

Magnetic Resonance Imaging (MRI) of the Knee

Magnetic Resonance Imaging (MRI) of the Shoulder

Magnetic Resonance Imaging (MRI) of the Spine

Maintaining a Healthy Relationship With Someone Who Has a Mental Health Condition

Major Nutrients in Food

Make the Most of Your Doctor Visit

Making a Birth Plan

Making a Change That Matters

Making a Plan to Cut Back on Alcohol Use

Making a Plan to Help Someone Get Treatment for Alcohol Use Disorder

Making a Suicide Safety Plan

Making It Easier to Wear a Mask to Help Prevent Infections

Making the Most of Your Appointment

Making Wise Health Decisions

Making Your Change Happen

Malabsorption Syndrome

Malaria

Malathion Topical

Male Breast Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI]

Male Breast Cancer Treatment (PDQ®): Treatment - Patient Information [NCI]

Male Condoms

Male Genital Problems and Injuries

Male Osteoporosis

Malignant Mesothelioma Treatment (PDQ®): Treatment - Health Professional Information [NCI]

Malignant Mesothelioma Treatment (PDQ®): Treatment - Patient Information [NCI]

Malocclusion and Orthodontics

Mammogram

Mammogram: What to Expect

Manage Stress for Your Heart

Managing a Croup Attack

Managing Cravings When You're Quitting Tobacco

Managing Emotional Changes During Pregnancy

Managing Job Stress

Managing Pain While You're in the Hospital

Managing Relationship Stress for Couples

Managing Relationship Stress for Families

Managing Seasonal Allergies

Managing Your Emotional Reactions

Managing Your Medical Bills

Managing Your Medicines

Managing Your Toddler's Frustrating Behaviors

Manual Therapy for Neck Pain

Maprotiline

Maralixibat

Maraviroc

Margetuximab-cmkb Injection

Marijuana

Marine Stings and Scrapes

Martha's Story: A Voice for Recovery

Masculinizing Surgeries for Gender Affirmation

Massage Therapy

Massage Therapy During Pregnancy

Mastectomy for Breast Cancer: Before Your Surgery

Mastectomy for Breast Cancer: Returning Home

Mastectomy (Removal of the Breast) for Breast Cancer

Master List of Medicines

Mastitis While Breastfeeding

Mavacamten

Mavorixafor

MBD4-Associated Neoplasia Syndrome (PDQ®): Genetics - Health Professional Information [NCI]

Measles (Rubeola)

Measuring the Intensity of Your Activity

Measuring Your Waist

Mebendazole

Mecasermin Injection

Mechlorethamine

Mechlorethamine Topical

Meclizine

Media and Your Child: Making Choices

Medial Collateral Ligament (MCL) Injury

Mediastinoscopy

Medical and Nonmedical Options for Gender Affirmation

Medical Checkups for Adolescents

Medical History and Physical Exam for Dementia or Alzheimer's Disease

Medical Marijuana

Medical Specialists

Medical Tests: Questions to Ask the Doctor

Medicare Hospice Benefit

Medicare: What You Need to Know

Medicinal Mushrooms (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]

Medicinal Mushrooms (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]

Medicine Blood Level Test

Medicine for High Blood Pressure

Medicine or Other Drug Use and Sleep Problems

Medicines and Other Substances That Can Cause Symptoms of Depression

Medicines During Pregnancy

Medicines for ADHD (Attention Deficit Hyperactivity Disorder)

Medicines for Bone Loss

Medicines for Cluster Headaches

Medicines for Depression

Medicines or Vitamins That Can Cause Gas, Bloating, or Burping

Medicines That Can Cause Acute Kidney Injury

Medicines That Can Cause Blisters

Medicines That Can Cause Changes in Menstrual Bleeding

Medicines That Can Cause Weakness or Fatigue

Medicines That Cause Hearing Loss

Medicines That May Cause Vaginal Symptoms

Meditation

Mediterranean Diet

Medroxyprogesterone

Medroxyprogesterone Injection

Mefloquine

Megestrol

Melanoma Excision Surgery

Melanoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]

Melanoma Treatment (PDQ®): Treatment - Patient Information [NCI]

Melatonin

MELD Score (Model for End-Stage Liver Disease)

Meloxicam

Meloxicam Injection

Melphalan

Melphalan Flufenamide Injection

Melphalan Injection

Memantine

Memory Problems: Issues With Driving

Memory Problems: Tips for Helping the Person With Daily Tasks

Memory Problems: Wandering

Menarche

Ménière's Disease

Meningitis

Meningococcal ACWY Vaccine: What You Need to Know

Meningococcal ACWY Vaccines (MenACWY)

Meningococcal B Vaccine: What You Need to Know

Meniscectomy for a Meniscus Tear

Meniscus Repair

Meniscus Repair: Before Your Surgery

Meniscus Surgery: Recovery Time

Meniscus tear: Fast Facts

Meniscus Tear: Rehabilitation Exercises

Meniscus Tear: Should I Have Surgery?

Menopause and Perimenopause

Menopause and Your Risk for Other Health Concerns

Menopause: Managing Hot Flashes

Menopause: Should I Use Hormone Therapy (HT)?

Men's Health

Menstrual Cramps

Menstrual Cramps: Relieving Pain

Menstrual Diary to Monitor Premenstrual Symptoms

Menstruation: Not Having a Period by Age 15

Mental and Behavioral Health

Mental Health Assessment

Mental Health Conditions and Stigma

Meperidine

Meperidine Injection

Mepolizumab Injection

Meprobamate

Merkel Cell Carcinoma Treatment (PDQ®): Treatment - Health Professional Information [NCI]

Merkel Cell Carcinoma Treatment (PDQ®): Treatment - Patient Information [NCI]

Meropenem and Vaborbactam Injection

Meropenem Injection

Mesalamine

Mesalamine Rectal

Mesna

Mesna Injection

Mesoridazine

Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)

Metabolic Syndrome

Metastatic Melanoma

Metastatic Squamous Neck Cancer With Occult Primary Treatment (PDQ®): Treatment - Health Professional Information [NCI]

Metastatic Squamous Neck Cancer with Occult Primary Treatment (PDQ®): Treatment - Patient Information [NCI]

Metaxalone

Metformin

Metformin for Diabetes

Methadone

Methadone Injection

Methamphetamine

Methamphetamine

Methenamine

Methicillin-Resistant Staphylococcus Aureus (MRSA)

Methimazole

Methotrexate

Methotrexate Injection

Methoxy Polyethylene Glycol-Epoetin Beta Injection

Methsuximide

Methyclothiazide

Methyldopa

Methyldopa and Hydrochlorothiazide

Methylergonovine

Methylnaltrexone

Methylnaltrexone Injection

Methylphenidate

Methylphenidate Transdermal Patch

Methylprednisolone

Methylprednisolone Injection

Metipranolol Ophthalmic

Metoclopramide Injection

Metoclopramide Nasal Spray

Metolazone

Metoprolol

Metronidazole Injection

Metronidazole Topical

Metronidazole Vaginal

Mexiletine

Micafungin Injection

Miconazole Buccal

Miconazole Topical

Miconazole Vaginal

Midazolam

Midazolam Injection

Midazolam Nasal Spray

Middle East Respiratory Syndrome (MERS)

Midodrine

Midostaurin

Mifepristone (Korlym)

Mifepristone (Mifeprex)

Miglitol

Miglustat

Migraine Headache Triggers

Migraine Headaches

Migraine Headaches in Children

Migraines: Finding and Avoiding Triggers

Mild Cognitive Impairment and Dementia

Milestones for 10-Year-Olds

Milestones for 2-Year-Olds

Milestones for 3-Year-Olds

Milestones for 4-Year-Olds

Milestones for 5-Year-Olds

Milestones for 6-Year-Olds

Milestones for 7-Year-Olds

Milestones for 8-Year-Olds

Milestones for 9-Year-Olds

Milestones for a 1-Year-Old

Milestones for Ages 11 to 14

Milestones for Ages 15 to 18

Milestones for an 18-Month-Old Child

Military Sexual Trauma

Milk Oversupply

Milk Thistle

Milk Thistle (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]

Milk Thistle (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]

Milnacipran

Mind-Body Wellness

Mindfulness Tips for Teens

Mindfulness: What Is It?

Mindfulness-Based Stress Reduction

Minerals: Their Functions and Sources

Minocycline

Minocycline Topical

Minoxidil

Minoxidil Topical

Mipomersen Injection

Mirabegron

Mirikizumab-mrkz Injection

Mirtazapine

Mirvetuximab soravtansine-gynx Injection

Miscarriage

Misoprostol

Missed or Irregular Periods

Mistletoe Extracts (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI]

Mistletoe Extracts (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI]

Mitapivat

Mitochondrial Diseases

Mitomycin

Mitomycin Pyelocalyceal

Mitotane

Mitoxantrone Injection

Mitral Valve Prolapse

Mitral Valve Regurgitation

Mitral Valve Regurgitation: Repair or Replace the Valve?

Mitral Valve Repair Surgery

Mitral Valve Replacement Surgery

Mitral Valve Stenosis

Mitral Valve Stenosis: Repair or Replacement?

Mittelschmerz (pain during ovulation): Fast facts

MMR Vaccine (Measles, Mumps, and Rubella)

MMR Vaccine (Measles, Mumps, and Rubella): What You Need to Know

MMRV Vaccine (Measles, Mumps, Rubella, and Varicella): What You Need to Know

Mobility After a Spinal Cord Injury

Mobility Problems: Getting In and Out of a Car Safely

Mobocertinib

Modafinil

Modify Recipes for a Heart-Healthy Diet

Modifying Activities for Osteoarthritis

Moexipril

Mogamulizumab-kpkc Injection

Mohs Surgery for Skin Cancer

Moisture Alarms for Bed-Wetting

Molar Pregnancy

Molindone

Molluscum Contagiosum

Molnupiravir

Momelotinib

Mometasone Nasal Spray

Mometasone Oral Inhalation

Mometasone Topical

Monitoring Your Medicines in the Hospital

Monomethyl Fumarate

Mononucleosis (Mono)

Mononucleosis Tests

Montelukast

Mood Disorders in Children

Mood-Stabilizing Medicines

Morphine

Morphine Injection

Morphine Rectal

Morton neuroma: Fast Facts

Morton's Neuroma

Mosunetuzumab-axgb Injection

Motion Sickness

Motivational Therapy for Bed-Wetting

Mouth and Dental

Mouth and Dental Injuries

Mouth Guard

Mouth Problems, Noninjury

Mouth Wounds: How to Stop Bleeding

Moving More For Mental Wellness

Moxetumomab Pasudotox-tdfk Injection

Moxifloxacin

Moxifloxacin Injection

Moxifloxacin Ophthalmic

Mpox

Mucous Cyst Ganglions

Multi-Organ Transplants

Multiple Endocrine Neoplasia Type 2 (MEN2) (PDQ®): Genetics - Health Professional Information [NCI]

Multiple Pregnancy: Preterm Birth

Multiple Pregnancy: Twins or More

Multiple Sclerosis: Mental and Emotional Problems

Multiple Sclerosis: Modifying Your Home

Multiple Sclerosis: MRI Results

Multiple Sclerosis (MS)

Multisystem Inflammatory Syndrome in Children (MIS-C)

Mumps

Munchausen Syndrome by Proxy (MSBP)

Mupirocin

Muscle Relaxants During Surgery

My Asthma Action Plan

My Reasons to Quit Smoking

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Managing Your Energy

Mycophenolate Injection

Mycoplasma Genitalium

Mycosis Fungoides and Other Cutaneous T-Cell Lymphomas Treatment (PDQ®): Treatment - Health Professional Information [NCI]

Mycosis Fungoides (Including Sézary Syndrome) Treatment (PDQ®): Treatment - Patient Information [NCI]

Myelodysplastic/ Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Patient Information [NCI]

Myelodysplastic Syndromes Treatment (PDQ®): Treatment - Health Professional Information [NCI]

Myelodysplastic Syndromes Treatment (PDQ®): Treatment - Patient Information [NCI]

Myelodysplastic/Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Health Professional Information [NCI]

Myelogram

Myeloproliferative Neoplasms Treatment (PDQ®): Treatment - Health Professional Information [NCI]

Myofascial Pain Syndrome

Myomectomy

Myths About Tourette's Disorder

Myths and Facts About Depression

Myxoma Tumors of the Heart