Here you’ll find 39 Pills that start with M, organized from “Macrobid” to “Myfortic”. Many are commonly prescribed antibiotics, heart medicines, or central nervous system drugs used worldwide.
Pills that start with M are drug names beginning with the letter M, covering a wide range of therapeutic areas. A notable example is “Macrobid,” a widely recognized urinary antibiotic familiar to many patients.
Below you’ll find the table with Name, Brand/generic, Primary use, Drug class, and Common side effects.
Name: The pill’s listed name, usually the generic or most common brand, so you can identify the medicine quickly.
Brand/generic: Indicates whether the listed name is a brand or generic, helping you match what you see on labels and prescriptions.
Primary use: Summarizes the main medical purpose in one phrase, so you know why the pill is commonly prescribed.
Drug class: Shows the therapeutic class, which helps you understand how the medicine works and related treatment options.
Common side effects: Lists three to six frequent side effects, so you can watch for symptoms and discuss concerns with your care team.
Pills that start with M
| Name | Generic name | Primary use | Therapeutic class |
|---|---|---|---|
| Metformin | metformin | type 2 diabetes | biguanide lowering blood sugar |
| Metoprolol | metoprolol | high blood pressure, heart rate control | beta blocker |
| Montelukast | montelukast | asthma and allergy control | leukotriene receptor antagonist |
| Mirtazapine | mirtazapine | depression | tetracyclic antidepressant |
| Meloxicam | meloxicam | arthritis pain and inflammation | NSAID |
| Methotrexate | methotrexate | rheumatoid arthritis and some cancers | antimetabolite, immunosuppressant |
| Methadone | methadone | opioid dependence and pain | opioid agonist |
| Methylphenidate | methylphenidate | ADHD and narcolepsy | stimulant |
| Metronidazole | metronidazole | bacterial and protozoal infections | nitroimidazole antibiotic |
| Minocycline | minocycline | bacterial infections and acne | tetracycline antibiotic |
| Minoxidil | minoxidil | severe/resistant high blood pressure (oral) | vasodilator antihypertensive |
| Mycophenolate mofetil | mycophenolate mofetil | prevent transplant rejection | immunosuppressant antimetabolite |
| Moxifloxacin | moxifloxacin | respiratory and skin infections | fluoroquinolone antibiotic |
| Mirabegron | mirabegron | overactive bladder | beta-3 adrenergic agonist |
| Maxalt | rizatriptan | acute migraine treatment | triptan (serotonin agonist) |
| Mobic | meloxicam | arthritis pain | NSAID |
| Macrobid | nitrofurantoin | urinary tract infections | urinary-specific antibiotic |
| Macrodantin | nitrofurantoin | urinary tract infections | antibiotic |
| Methimazole | methimazole | hyperthyroidism | antithyroid agent |
| Mebendazole | mebendazole | intestinal worm infections | anthelmintic |
| Metoclopramide | metoclopramide | nausea and gastroparesis | dopamine antagonist/prokinetic |
| Methylprednisolone | methylprednisolone | inflammation and allergic reactions | corticosteroid |
| Methocarbamol | methocarbamol | muscle spasms | muscle relaxant |
| Metaxalone | metaxalone | muscle pain and spasms | muscle relaxant |
| Methamphetamine | methamphetamine | ADHD, obesity (rare, controlled) | stimulant |
| Monopril | fosinopril | high blood pressure | ACE inhibitor |
| Metolazone | metolazone | edema and high blood pressure | thiazide-like diuretic |
| Morphine | morphine sulfate | moderate to severe pain | opioid analgesic |
| Modafinil | modafinil | narcolepsy and excessive sleepiness | wakefulness-promoting agent |
| Mirapex | pramipexole | Parkinson’s disease, restless legs | dopamine agonist |
| Mucinex | guaifenesin | loosen chest mucus | expectorant |
| Mestinon | pyridostigmine | myasthenia gravis | cholinesterase inhibitor |
| Methadose | methadone | opioid dependence and pain | opioid agonist |
| Myfortic | mycophenolic acid | prevent transplant rejection | immunosuppressant |
| Meclizine | meclizine | motion sickness and vertigo | antihistamine/antiemetic |
| Moduretic | amiloride, hydrochlorothiazide | high blood pressure, edema | potassium-sparing + thiazide diuretic |
| Mesalamine | mesalamine | ulcerative colitis maintenance | anti-inflammatory for colon |
| Minipress | prazosin | high blood pressure, PTSD nightmares | alpha-1 blocker |
| Methergine | methylergonovine | prevent postpartum bleeding | uterotonic agent |
Descriptions
Metformin
Nausea, diarrhea, abdominal pain, metallic taste, B12 deficiency; first-line diabetes pill, avoid in severe kidney disease.
Metoprolol
Fatigue, dizziness, slow heart rate, cold hands/feet, erectile dysfunction; lowers heart rate and BP—taper off slowly.
Montelukast
Headache, abdominal pain, cough, dizziness, mood changes; used for asthma/allergies—watch for mood or behavioral effects.
Mirtazapine
Drowsiness, increased appetite, weight gain, dry mouth, dizziness; sedating antidepressant often taken at night.
Meloxicam
Stomach upset, indigestion, headache, dizziness, increased blood pressure; reduces joint pain but can raise bleeding and heart risks.
Methotrexate
Nausea, mouth sores, hair thinning, liver toxicity, low blood counts; requires regular blood tests and folic acid.
Methadone
Constipation, drowsiness, sweating, nausea, slow breathing; high-risk opioid used in addiction programs—monitor closely.
Methylphenidate
Insomnia, decreased appetite, nervousness, increased heart rate, stomachache; controlled stimulant—monitor growth and heart in kids.
Metronidazole
Nausea, metallic taste, headache, abdominal pain, disulfiram-like reaction with alcohol; avoid alcohol during and 48 hours after treatment.
Minocycline
Photosensitivity, nausea, dizziness, skin discoloration, tooth staining in children; avoid in pregnancy and young children.
Minoxidil
Fluid retention, increased heart rate, hypertrichosis, headache; oral form reserved for resistant hypertension with diuretic use.
Mycophenolate mofetil
Diarrhea, nausea, vomiting, low blood counts, infection risk; pregnancy-risk medication—avoid pregnancy and use contraception.
Moxifloxacin
Tendon pain, nausea, diarrhea, dizziness, QT prolongation; avoid with tendon disorders and monitor heart rhythm risk.
Mirabegron
Increased blood pressure, headache, UTI, constipation; can raise blood pressure—monitor in hypertensive patients.
Maxalt
Dizziness, fatigue, dry mouth, chest tightness, nausea; effective for migraines but avoid if you have heart disease.
Mobic
Stomach upset, dizziness, headache, edema, increased blood pressure; brand NSAID—watch for stomach bleeding and heart risk.
Macrobid
Nausea, headache, brown urine, pulmonary reactions, neuropathy; used for uncomplicated UTIs—avoid in late pregnancy and poor kidney function.
Macrodantin
Nausea, headache, dark urine, pulmonary issues, peripheral neuropathy; older nitrofurantoin formulation—same urinary use cautions.
Methimazole
Rash, itching, nausea, joint pain, low white blood cells; monitor for fever/sore throat—rare agranulocytosis risk.
Mebendazole
Abdominal pain, diarrhea, headache, dizziness; short-course treatment for common parasitic worms.
Metoclopramide
Drowsiness, restlessness, diarrhea, tremor, movement disorders; limit long-term use due to tardive dyskinesia risk.
Methylprednisolone
Increased appetite, weight gain, mood changes, insomnia, high blood sugar; short courses common—long-term effects significant.
Methocarbamol
Drowsiness, dizziness, nausea, blurred vision; sedating—avoid driving or alcohol.
Metaxalone
Drowsiness, dizziness, headache, nausea; sedating—avoid heavy machinery and alcohol.
Methamphetamine
Insomnia, decreased appetite, increased heart rate, anxiety, dependence; highly controlled with limited medical use.
Monopril
Cough, dizziness, high potassium, low blood pressure, rash; ACE inhibitors are contraindicated in pregnancy.
Metolazone
Low sodium/potassium, increased urination, dizziness, dehydration; used for resistant fluid overload—monitor electrolytes.
Morphine
Constipation, drowsiness, nausea, itching, respiratory depression; high-risk opioid—monitor for overdose and dependence.
Modafinil
Headache, nervousness, nausea, decreased appetite, insomnia; prescription stimulant-like—watch for rash.
Mirapex
Drowsiness, dizziness, nausea, low blood pressure, impulse control issues; may cause sleepiness and compulsive behaviors.
Mucinex
Nausea, dizziness, headache, vomiting; OTC tablets/capsules—stay hydrated to help loosen mucus.
Mestinon
Diarrhea, increased saliva, muscle cramps, sweating; improves muscle strength in myasthenia gravis.
Methadose
Constipation, drowsiness, sweating, nausea, respiratory depression; brand methadone—used in addiction treatment with strict programs.
Myfortic
Diarrhea, nausea, infection risk, low blood counts; enteric-coated transplant medication—avoid pregnancy.
Meclizine
Drowsiness, dry mouth, fatigue, blurred vision; OTC option for motion sickness and dizziness.
Moduretic
Low sodium, dizziness, increased urination, high potassium; combo diuretic—monitor electrolytes.
Mesalamine
Abdominal pain, headache, nausea, gas, rash; delayed-release tablets for colon inflammation management.
Minipress
Dizziness, drowsiness, headache, low blood pressure; can help blood pressure and PTSD-related nightmares.
Methergine
Cramping, nausea, high blood pressure, sweating; used after delivery to control bleeding—avoid with hypertension.