Drugs A to Z
Browse 1,912 medicine pages by name. Each page explains what the medicine treats, how it is normally taken and which warnings matter.
Penbraya
Meningococcal Groups A, B, C, W, and Y Vaccine
Penbraya vaccine is used to prevent invasive meningococcal disease (IMD) caused by the most common 5 grou…
Penicillin V
penicillin V
Penicillins are a group of antibiotics that fight bacteria and was originally developed from the Penicill…
Penlac Nail Lacquer
ciclopirox topical
Penlac is an antifungal medicine that prevents fungus from growing on your skin. Penlac nail lacquer is u…
Pennsaid
diclofenac topical
Pennsaid is a nonsteroidal anti-inflammatory drug (NSAID). It works by reducing substances in the body th…
Pentacel
diphtheria, haemophilus B, pertussis, polio, tetanus vaccine
Pentacel is a vaccine used to improve immunity against diphtheria, haemophilus influenzae type B, pertuss…
Pentasa
mesalamine (oral)
Pentasa affects a substance in the body that causes inflammation, tissue damage, and diarrhea. Pentasa is…
Pentetate
pentetate calcium trisodium (systemic)
Harmful substances may accumulate in your bladder. Therefore, to increase the flow of urine and decrease…
Pepaxto
melphalan flufenamide
Pepaxto is a prescription medicine used in combination with the medicine dexamethasone to treat adults wi…
Pepcid
famotidine
Pepcid is a histamine-2 blocker that works by decreasing the amount of acid the stomach produces. Pepcid…
Pepto-Bismol
bismuth subsalicylate
Pepto-Bismol is used to treat diarrhea, travelers' diarrhea, nausea, heartburn, indigestion, gas, or upse…
Percocet
Prescription only
oxycodone and acetaminophen
Percocet is used to manage pain severe enough to require an opioid analgesic and for which alternative tr…
Percodan
aspirin and oxycodone
Percodan contains a combination of aspirin and oxycodone. Aspirin belongs to a group of drugs called sali…
Percogesic Extra Strength
acetaminophen and diphenhydramine
Percogesic Extra Strength contains a combination of acetaminophen and diphenhydramine. Acetaminophen is a…
Perforomist Inhalation Solution
formoterol (inhalation)
Perforomist inhalation (formoterol) is a long-acting bronchodilator. It relaxes muscles in the airways to…
Perjeta
pertuzumab
Perjeta (pertuzumab) is a HER2/neu receptor antagonist used to treat HER2-positive breast cancer. It work…
Perlane
non-animal stabilized hyaluronic acid (NASHA) injectable gel
Perlane is an FDA-approved dermal filler for implantation into the skin for the correction of moderate to…
Pertzye
pancrelipase
Pertzye is a prescription medicine used to treat people who cannot digest food normally because their pan…
Pfizer-BioNTech COVID-19 vaccine
COVID-19 Vaccine, mRNA
Comirnaty (Pfizer-BioNTech). Approved for adults aged 65 years and older, and for people aged 5 through 6…
Phencyclidine (PCP)
Phencyclidine was developed in the 1950s as an intravenous (IV) anesthetic; however, due to the side effe…
Phendimetrazine
phendimetrazine
Phendimetrazine is a sympathomimetic amine, which is similar to an amphetamine. Phendimetrazine stimulate…
Phenergan
promethazine (oral)
Phenergan belongs to a group of drugs called phenothiazines. It works by changing the actions of chemical…
Phentermine
phentermine
Phentermine is used to speed weight loss in overweight people. It is used together with diet and exercise…
Phenylephrine
phenylephrine
Oral and nasal phenylephrine are used as nasal decongestants to temporarily unblock a nose or relieve sin…
Phenytoin
phenytoin (oral)
Phenytoin is an anti-epileptic drug, also called an anticonvulsant. Phenytoin works by slowing down impul…