Drug

Isosorbide dinitrate

As of the edition of 20 October 2026, Isosorbide dinitrate is a small molecule: marketed, first approved in 1981 (FR); acts on GUCY1B1 and GUCY1B2.

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

The drug

Status
Marketed; latest approval 1988
Kind
Small molecule
Brand name
Isordil
First approved
23 March 1981 (FR)
Approvals on record
21 in 3 regions
Holder of the most recent approval
Azurity Pharmaceuticals; 7 holders in all
Registered trials
14, 0 stopped early
Disease areas
Heart and blood vessels; Pregnancy and women's health; Urinary and reproductive; Digestive system; Nervous system; Nutrition and metabolism

US protection

No US approval on record.

With no US approval on record there are no listed US patents or exclusivities.

This is the US only.

Targets

GeneProteinUniProt
GUCY1B2Putative guanylate cyclase soluble subunit beta-2O75343
GUCY1B1Guanylate cyclase soluble subunit beta-1Q02153

Registered trials

PhaseTrialsCompletedActiveStopped early
Phase not stated4200
Phase 12200
Phase 22110
Phase 32100
Phase 44400
All trials14

Who has held its approvals

CompanyRoleYears
PfizerEarlier holder1988 to now
UCBLater holder1988 to now
AstraZenecaLater holder1996 to now
Bausch HealthAcquired holder2019 to now
EndoAcquired holder2024 to now