Ketotifen

Ketotifen

File:Ketotifen structure.svg
Clinical data
Routes of administration	Oral, Eye Drops
ATC code	R06AX17 (WHO) S01GX08 (WHO)
Pharmacokinetic data
Bioavailability	60%
Protein binding	75%
Metabolism	Hepatic
Elimination half-life	21 Hours
Identifiers
IUPAC name 4,9-dihydro-4-(1-methyl-4-piperidinylidene)- 10H-benzocyclohepta[1,2-b]thiopen-10-one
CAS Number	34580-14-8
PubChem CID	3827
DrugBank	APRD01061
E number	{{#property:P628}}
ECHA InfoCard	{{#property:P2566}}
Chemical and physical data
Formula	C19H19NOS
Molar mass	309.426 g/mol

Ketotifen fumarate (ophthalmic solutions marketed under the brand name Zaditor (Novartis) and Alaway (Bausch and Lomb)) is an H₁-antihistamine/mast cell stabilizer available in two forms. In its ophthalmic form, it is used to treat allergic conjunctivitis, or the itchy red eyes caused by allergies. In its oral form, it is used to prevent asthma attacks. Side effects include drowsiness, weight gain, dry mouth, irritability, and increased nosebleeds.

General Information

Ketotifen relieves and prevents eye itchiness and/or irritation associated with most seasonal allergies. It starts working within minutes after administering the drops. The drug has not been studied in children under 3.

Overdosage

Accidental ingestion of an entire bottle of ketotifen is unlikely to cause side effects since it contains less than 2 mg of medicine.

External links

• Zaditor web site
• {http://www.bausch.com/en_US/consumer/visioncare/product/drops/alaway_con.aspx Alaway web site]