Drug

Pemirolast

As of the edition of 20 October 2026, Pemirolast is a small molecule: marketed, first approved in 1999 (US); no US protection is listed.

Sources: FDA Orange Book and Purple Book, other approval registers, ClinicalTrials.gov, ChEMBL.

The drug

Status
Marketed; latest approval 1999
Kind
Small molecule
Brand name
Alamast
First approved
24 September 1999 (US)
Approvals on record
1 in 1 region
Holder of the most recent approval
Santen Pharmaceutical

US protection

No US protection is listed.

The FDA registers list no drug-substance patent or exclusivity that counts for this drug.

This is the US only.

Who has held its approvals

CompanyRoleYears
Santen PharmaceuticalOriginator1999 to now