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Drugs A to Z
Select any letter to display the medications available then choose one to learn more about the side effects, dosing, interactions and the most important information about its use.
N
Nabilone is a man-made form of cannabis (marijuana is an herbal form of cannabis).
Nabilone causes many effects on your central nervous system.
Nabumetone is in a group of drugs called nonsteroidal anti-inflammatory drugs
(NSAIDs). Nabumetone works by reducing hormones that cause inflammation and pain in the
body.
Nadolol is in a group of drugs called beta-blockers. Beta-blockers affect the heart and
circulation (blood flow through arteries and veins).
Nafarelin nasal is a man-made form of a protein that is like a hormone in the body that
helps regulate the menstrual cycle, fertility, and sexual development during puberty.
Nafcillin is an antibiotic in the penicillin group of drugs. It fights bacteria in your body.
Naftifine topical is an antifungal medication. Naftifine topical prevents fungus from
growing on your skin.
Nalbuphine is in a group of drugs called narcotic pain relievers. It is similar to morphine.
Nalmefene reverses the effects of opioid (OH-pee-oid) medications, also called narcotics.
Opioid effects include drowsiness, low blood pressure, and slowed breathing.
Naloxone is an special narcotic drug that reverses the effects of other narcotic medicines.
Naltrexone injection is a special narcotic drug that blocks the effects of other narcotic
medicines and alcohol.
Naltrexone oral is an special narcotic drug that blocks the effects of other narcotic
medicines and alcohol.
Naphazoline is a vasoconstrictor. It works by narrowing swollen blood vessels in the eyes
to reduce eye redness.
Naphazoline ophthalmic causes constriction of blood vessels in the eyes. It also decreases
itching and irritation of the eyes.
Naproxen is in a group of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs).
Naproxen works by reducing hormones that cause inflammation and pain in the body.
Naproxen is in a group of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs).
Naproxen works by reducing hormones that cause inflammation and pain in the body.
Naratriptan is a headache medicine. It is believed to work by narrowing the blood vessels
around the brain. Naratriptan also reduces substances in the body that can trigger headache pain,
nausea, sensitivity to light and sound, and other migraine symptoms.
Natalizumab is a monoclonal antibody that affects the actions of the body's immune
system. Monoclonal antibodies are made to target and destroy only certain cells in the body.
This may help to protect healthy cells from damage.
Natamycin is an antifungal medication.
Nateglinide is an oral diabetes medicine that helps control blood sugar levels. This
medication helps your body respond better to insulin produced by your pancreas.
Nebivolol is in a group of drugs called beta-blockers. Beta-blockers affect the heart and
circulation (blood flow through arteries and veins).
Nedocromil is an anti-allergic medication. It inhibits processes in the body that cause
allergic symptoms after exposure to an allergen.
Nedocromil is an anti-inflammatory medication. It works by preventing the release of
substances in the body that cause inflammation.
Nefazodone is an antidepressant. It is used to treat depression, including major depressive
disorder.
Nelarabine interferes with the growth of cancer cells and slows their growth and spread in
the body.
Nelfinavir is an antiviral medication in a group of HIV medicines called protease
(PRO-tee-ayz) inhibitors. Nelfinavir prevents human immunodeficiency virus (HIV) cells from
multiplying in your body.
Neomycin and polymyxin B are antibiotics. They are used to treat bacterial infections.
Neomycin and polymyxin B are antibiotics. They are used to treat bacterial infections.
Neomycin and polymyxin B are antibiotics. They are used to treat bacterial infections.
Neomycin is an antibiotic.
Neomycin is an antibiotic. It is used to treat bacterial infections.
Neostigmine affects chemicals in the body that are involved in the communciation
between nerve impulses and muscle movement.
Nepafenac ophthalmic is in a group of drugs called nonsteroidal anti-inflammatory drugs
(NSAIDs). It reduces pain and inflammation in the eyes.
Nesiritide relaxes and dilates blood vessels, lowering blood pressure.
Nettle is also known as White Nettle, Hemp Nettle, Common Nettle, Greater Nettle, Stinging
Nettle and Devil's Leaf.
Nevirapine is an antiviral medication that prevents human immunodeficiency virus (HIV)
cells from multiplying in your body.
Niacin, also called nicotinic acid, is a B vitamin (vitamin B3). It occurs naturally in
plants and animals, and is also added to many foods as a vitamin supplement. Niacin is also
present in many multiple vitamins and nutritional supplements.
Nicardipine is in a class of drugs called calcium channel blockers. Nicardipine relaxes (widens)
your blood vessels, which makes it easier for the heart to pump and reduces its workload.
Nicotine is the primary ingredient in tobacco products.
Nifedipine is in a class of drugs called calcium channel blockers. Nifedipine relaxes (widens)
your blood vessels (veins and arteries), which makes it easier for the heart to pump and reduces its
workload.
Nilotinib interferes with the growth of some cancer cells.
Nilutamide is an antiandrogen. It works in the body to prevent the actions of androgens (male
hormones).
Nimodipine is in a group of drugs called calcium channel blockers. Nimodipine relaxes
(widens) blood vessels and improves blood flow.
Nisoldipine is in a group of drugs called calcium channel blockers. Nisoldipine relaxes
(widens) blood vessels and improves blood flow.
Nitazoxanide is an antiprotozoal agent.
Nitisinone is used to treat a rare genetic condition called hereditary tyrosinemia type 1 (HT-1).
HT-1 is a metabolic disorder that occurs when the body does not produce enough of an enzyme that
breaks down proteins from certain foods. This condition occurs most often in young babies. The
symptoms of HT-1 include unusual bleeding and signs of liver failure, such as dark urine, jaundice
(yellowing of the skin or eyes), sudden stomach pain, nausea, vomiting, diarrhea, and fatigue.
Nitric oxide is a gas that is inhaled. It works by relaxing smooth muscle to widen (dilate)
blood vessels, especially in the lungs.
Nitrofurantoin is an antibiotic that fights bacteria in the body.
Nitroglycerin is in a group of drugs called nitrates. Nitroglycerin dilates (widens) blood
vessels, making it easier for blood to flow through them and easier for the heart to pump.
Nitroglycerin is in a group of drugs called nitrates. Nitroglycerin dilates (widens) blood
vessels, making it easier for blood to flow through them and easier for the heart to pump.
Nitroprusside is a vasodilator that works by relaxing the muscles in your blood vessels to
help them dilate (widen). This lowers blood pressure and allows blood to flow more easily
through your veins and arteries.
Nizatidine is in a class of drugs called histamine receptor antagonists. Nizatidine works by
decreasing the amount of acid the stomach produces.
Norepinephrine is similar to adrenaline. It works by constricting (narrowing) the blood
vessels and increasing blood pressure and blood glucose (sugar) levels.
Norethindrone is a form of progesterone, a female hormone. Norethindrone prevents
ovulation (the release of an egg from an ovary). This medication also causes changes in your
cervical mucus and uterine lining, making it harder for sperm to reach the uterus and harder for a
fertilized egg to attach to the uterus.
Norfloxacin is an antibiotic in a group of drugs called fluoroquinolones
(flor-oh-KWIN-oh-lones). It fights bacteria in the body.
Norfloxacin ophthalmic is an antibiotic.
Nortriptyline is in a group of drugs called tricyclic antidepressants. Nortriptyline affects
chemicals in the brain that may become unbalanced.
Nystatin is an antibiotic medication that prevents fungus from growing on your skin.
Nystatin is an antifungal medication.
Nystatin is an antifungal medication. Nystatin prevents fungus from growing.
Nystatin topical is an antifungal medication. Nystatin topical prevents fungus from
growing on your skin.
Pentazocine is in a group of drugs called narcotic pain relievers.
Simvastatin is a cholesterol-lowering medication that blocks the production of cholesterol
(a type of fat) in the body.
Naltrexone injection is a special narcotic drug that blocks the effects of other narcotic
medicines and alcohol.
Naproxen is in a group of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs).
Naproxen works by reducing hormones that cause inflammation and pain in the body.
Nitroglycerin is in a group of drugs called nitrates. Nitroglycerin dilates (widens) blood
vessels, making it easier for blood to flow through them and easier for the heart to pump.
Nitroglycerin is in a group of drugs called nitrates. Nitroglycerin dilates (widens) blood
vessels, making it easier for blood to flow through them and easier for the heart to pump.
Nystatin is an antifungal medication. Nystatin prevents fungus from growing.
Nystatin topical is an antifungal medication. Nystatin topical prevents fungus from
growing on your skin.
Nitroglycerin is in a group of drugs called nitrates. Nitroglycerin dilates (widens) blood
vessels, making it easier for blood to flow through them and easier for the heart to pump.
Naphazoline ophthalmic causes constriction of blood vessels in the eyes. It also decreases
itching and irritation of the eyes.
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