Phenylacetic acids

chemical compound

Fexofenadine, sold under the brand name Allegra among others, is an antihistamine medication used in the treatment of allergy symptoms such as allergic rhinitis and urticaria.

pair of enantiomers

chemical compound

chemical compound

Olopatadine, sold under the brand name Patanol among others, is an antihistamine medication used to decrease the symptoms of allergic conjunctivitis and allergic rhinitis (hay fever). It is used as eye drops or as a nasal spray. The eye drops generally result in an improvement within half an hour.

chemical compound

chemical compound

Amfenac, also known as 2-amino-3-benzoylbenzeneacetic acid, is a nonsteroidal anti-inflammatory drug (NSAID) with acetic acid moiety.