Drugs A to Z
Browse 2,058 medicine pages by name. Each page explains what the medicine treats, how it is normally taken and which warnings matter.
Prezista
darunavir
Prezista is a protease (PRO-tee-ayz) inhibitor antiviral medicine that prevents human immunodeficiency vi…
Prialt
ziconotide
Prialt is a non-narcotic pain reliever that works by blocking pain signals from the nerves to the brain.…
Prilosec
Over the counter
omeprazole
Prilosec is a proton pump inhibitor that decreases the amount of acid produced in the stomach. Prilosec i…
Prinivil
lisinopril
Prinivil (lisinopril) is used alone or in combination with other medications to treat high blood pressure…
Pristiq
desvenlafaxine
Pristiq is an antidepressant belonging to a group of drugs called selective serotonin and norepinephrine…
Privigen
immune globulin (IGIV) (intravenous)
Privigen is a sterile solution made from human plasma. It contains antibodies to help your body protect i…
ProAir Digihaler
albuterol sulfate
ProAir Digihaler (albuterol sulfate) is a digital rescue inhaler for the quick-relief of asthma symptoms.…
Probuphine Implant
buprenorphine (implant)
Probuphine (buprenorphine) is an opioid medication. An opioid is sometimes called a narcotic. Probuphine…
Procrit
epoetin alfa
Procrit is a man-made form of a protein that helps your body produce red blood cells. This protein may be…
Procysbi
cysteamine
Procysbi works by reducing the amount of cystine (an amino acid) in the body. Procysbi is used to treat n…
Progesterone
progesterone
Progesterone is a naturally occurring female hormone that plays a central role in regulating ovulation, m…
Prograf
tacrolimus (oral/injection)
Prograf weakens your body's immune system, to help keep it from "rejecting" a transplanted organ such as…
Prolastin-C Liquid
alpha 1-proteinase inhibitor
Prolastin-C Liquid may be used to replace missing alpha1-proteinase inhibitor (alpha1-PI) levels in peopl…
Prolia
denosumab
Prolia (denosumab) is an injection that is administered subcutaneously (under the skin) once every 6 mont…
Promacta
eltrombopag
Promacta is a man-made form of a protein that stimulates cells in the bone marrow to produce more platele…
Promethazine
promethazine (oral)
Promethazine is in a group of drugs called phenothiazines (FEEN-oh-THYE-a-zeens). It works by changing th…
Prometrium
progesterone
Prometrium is a female hormone important for the regulation of ovulation and menstruation. Prometrium is…
Propecia
finasteride
Propecia prevents the conversion of testosterone to dihydrotestosterone (DHT) in the body. Propecia is us…
Propofol
propofol
Propofol slows the activity of your brain and nervous system. Propofol is used to put you to sleep and ke…
Propoxyphene
propoxyphene
Propoxyphene is in a group of drugs called narcotic pain relievers. Propoxyphene is used to relieve mild…
Propranolol
propranolol
Propranolol is a prescription nonselective beta-blocker used to treat high blood pressure (hypertension),…
ProQuad
measles, mumps, rubella and varicella (MMRV) vaccine
ProQuad is a measles, mumps, rubella and varicella virus vaccine. Measles, mumps, rubella, and varicella…
Proscar
finasteride
Proscar prevents the conversion of testosterone to dihydrotestosterone (DHT) in the body. DHT is involved…
Protonix
pantoprazole (oral/injection)
Protonix is a proton pump inhibitor that decreases the amount of acid produced in the stomach. Protonix i…