Pemirolast

Pemirolast
Clinical data

Trade names	Alamast
AHFS/Drugs.com	Monograph
Pregnancy category	US: C (Risk not ruled out)
Routes of administration	Oral, ophthalmic
ATC code	none
Legal status
Legal status	In general: ℞ (Prescription only)
Identifiers
IUPAC name 9-methyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-one
CAS Number	69372-19-6^Y
PubChem CID	57697
IUPHAR/BPS	7329
DrugBank	DB00885^N
ChemSpider	51990^N
UNII	2C09NV773M
KEGG	D07476^Y
ChEMBL	CHEMBL1201198^N
ECHA InfoCard	100.222.995
Chemical and physical data
Formula	C₁₀H₈N₆O
Molar mass	228.21 g/mol
3D model (JSmol)	Interactive image
SMILES CC1=CC=CN2C1=NC=C(C2=O)C3=NNN=N3
^NY (what is this?) (verify)

Pemirolast (INN) is a mast cell stabilizer used as an anti-allergic drug therapy. It is marketed under the tradenames Alegysal and Alamast.

It has also been studied for the treatment of asthma.

References

Tinkelman DG, Berkowitz RB (February 1991). "A pilot study of pemirolast in patients with seasonal allergic rhinitis". Ann Allergy. 66 (2): 162–5. PMID 1994787.
Kawashima T, Iwamoto I, Nakagawa N, Tomioka H, Yoshida S (1994). "Inhibitory effect of pemirolast, a novel antiallergic drug, on leukotriene C4 and granule protein release from human eosinophils". Int. Arch. Allergy Immunol. 103 (4): 405–9. PMID 8130655. doi:10.1159/000236662.
Abelson MB, Berdy GJ, Mundorf T, Amdahl LD, Graves AL (October 2002). "Pemirolast potassium 0.1% ophthalmic solution is an effective treatment for allergic conjunctivitis: a pooled analysis of two prospective, randomized, double-masked, placebo-controlled, phase III studies". J Ocul Pharmacol Ther. 18 (5): 475–88. PMID 12419098. doi:10.1089/10807680260362759.
Kemp JP, Bernstein IL, Bierman CW, et al. (June 1992). "Pemirolast, a new oral nonbronchodilator drug for chronic asthma". Ann Allergy. 68 (6): 488–91. PMID 1610024.

External links

Mitsubishi Tanabe Pharma Corporation (2007). "ALEGYSAL (English)" (PDF). Retrieved 2008-09-02.
"DailyMed Announcements". U.S. National Library of Medicine. 2005. Retrieved 2008-09-02.

Antihistamines (R06)
Aminoalkyl ethers	Bromazine (bromodiphenhydramine) Carbinoxamine Clemastine Chlorphenoxamine Diphenylpyraline Diphenhydramine Doxylamine Orphenadrine Phenyltoloxamine
Substituted alkylamines	Brompheniramine Chlorphenamine Dexbrompheniramine (+pseudoephedrine) Dexchlorpheniramine (+betamethasone) Dimetindene Pheniramine Talastine
Substituted ethylenediamines	Chloropyramine Histapyrrodine Mepyramine Methapyrilene Tripelennamine (pyribenzamine)
Phenothiazine derivatives	Alimemazine Fenethazine Hydroxyethylpromethazine Isothipendyl Mequitazine Methdilazine Oxomemazine Promethazine
Piperazine derivatives	Buclizine Cetirizine Levocetirizine Chlorcyclizine Cinnarizine Cyclizine Hydroxyzine Meclizine Oxatomide
Others for systemic use	Antazoline Azanator Azatadine Bamipine Cyproheptadine Deptropine Doxepin Ebastine Emedastine Epinastine Ketotifen Latrepirdine Mebhydrolin Mizolastine Olopatadine Phenindamine Pimethixene Pyrrobutamine Quifenadine Rupatadine Triprolidine selective (Acrivastine Astemizole Azelastine Bilastine Desloratadine Fexofenadine Loratadine Terfenadine)
For topical use	Bamipine Chloropyramine Chlorphenoxamine Clemastine Dimetindene Diphenhydramine Doxepin Isothipendyl Mepyramine Promethazine Thenalidine

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