User:Mr. Ibrahem/Olopatadine
From Wikipedia, the free encyclopedia
Olopatadine is a medication used to decrease the symptoms of allergic conjunctivitis and allergic rhinitis (hay fever).[2] It is used as eye drops or as a nasal spray.[2] The eye drops general result in an improvement within half an hour.[2]
![]() | |
Clinical data | |
---|---|
Trade names | Patanol and others |
AHFS/Drugs.com | Monograph |
MedlinePlus | a602025 |
License data |
|
Pregnancy category |
|
Routes of administration | Eye drops, nasal spray |
Drug class | Antihistamine, mast cell stabilizer.[1][2] |
Legal status | |
Legal status | |
Pharmacokinetic data | |
Elimination half-life | 3 hours |
Identifiers | |
| |
Chemical and physical data | |
Formula | C21H23NO3 |
Molar mass | 337.419 g·mol−1 |
3D model (JSmol) | |
| |
| |
![]() ![]() |
Common side effects include headache, sore throat, eye discomfort, and change in taste.[4][2] More significant side effects may include sleepiness.[2] It is unclear if use during pregnancy or breastfeeding is safe.[5] It is an antihistamine and mast cell stabilizer.[1][2]
Olopatadine was patented in 1986 and came into medical use in 1997.[6] It is available as a generic medication.[2] A 5 milliliter bottle of the eye drops in the United Kingdom costs the NHS less than £5 as of 2019.[4] In the United States the wholesale cost of this amount is about US$12.50.[7] In 2017, it was the 270th most commonly prescribed medication in the United States, with more than one million prescriptions.[8][9]