Drugs A to Z
Browse 1,905 medicine pages by name. Each page explains what the medicine treats, how it is normally taken and which warnings matter.
QuilliChew ER
methylphenidate hydrochloride
QuilliChew ER is a chewable extended-release tablet used to treat attention deficit hyperactivity disorde…
Quillivant XR
methylphenidate (oral)
Quillivant XR is a central nervous system stimulant. It affects chemicals in the brain and nerves that co…
Qulipta
atogepant
Qulipta is used to help prevent episodic and chronic migraine headaches in adults. These are severe, thro…
Qutenza
OTC and prescription
capsaicin topical
Qutenza (capsaicin) 8% topical system is a prescription skin patch used in adults to treat nerve pain aft…
Quviviq
daridorexant
Quviviq (daridorexant) is a prescription medicine that may be used to encourage sleep in adults who have…
Qwo
OTC and prescription
collagenase clostridium histolyticum-aaes (for injection)
Qwo was used for the treatment of moderate to severe cellulite in the buttocks of adult women. This medic…
Radicava
edaravone
Radiesse
Calcium Hydroxylapatite
Radiesse is a FDA-approved subdermal implant (injected below the surface of the skin) indicated for: the…
Ramipril
ramipril
Ramipril is an ACE inhibitor. ACE stands for angiotensin-converting enzyme. Ramipril is used to treat hig…
Ranexa
ranolazine
Ranexa (ranolazine) belongs to a class of medications called anti-anginals. The exact way that ranolazine…
Ranitidine
ranitidine
Ranitidine belongs to a group of drugs called histamine-2 blockers. It works by reducing the amount of ac…
Rapaflo
silodosin
Rapaflo is an alpha-adrenergic (AL-fa ad-ren-ER-jik) blocker. Rapaflo helps relax the muscles in the pros…
Rapamune
sirolimus
Rapamune weakens your body's immune system, to help keep it from "rejecting" a transplanted organ such as…
Rapiblyk
landiolol
Rapiblyk (landiolol) is a short-term treatment for supraventricular tachycardia including atrial fibrilla…
Raptiva
efalizumab
Raptiva is a man-made form of a protein similar to human antibodies. Efalizumab is made to target and des…
Rasonque
daraxonrasib
Rasonque (daraxonrasib) is a targeted cancer treatment used in adults with metastatic pancreatic cancer w…
Ravicti
glycerol phenylbutyrate
Ravicti binds with other substances in the liver and kidneys to help eliminate nitrogen from the body. Ex…
Ravulizumab
ravulizumab-cwvz
Ravulizumab-cwvz is a prescription medication used to treat myasthenia gravis (gMG), hemolytic uremic syn…
Raxibacumab
Raxibacumab is a prescription medicine used along with antibiotic medicines to treat people with inhalati…
Rayos
prednisone
Rayos is a corticosteroid that reduces inflammation in the body, and also suppresses your immune system.…
Razadyne
galantamine
Razadyne is used to treat mild to moderate Alzheimer's type dementia by improving the function of nerve c…
Rebetol
ribavirin (oral)
Rebetol is an antiviral medication that is used to treat chronic hepatitis C. The brand Rebetol has been…
Rebif
interferon beta-1a
Rebif (interferon beta-1a) is used to treat relapsing forms of multiple sclerosis (MS) in adults, includi…
Rebinyn
glycopegylated coagulation factor IX (recombinant)
Rebinyn (glycopegylated coagulation factor IX [recombinant]) is an injectable, long-lasting, human blood…