dapsone · Almirall · NDA 021794, 207154

Aczone

Earliest generic entry, as listed · earliest of 2 marketed strengths
18 Nov 2033

1 of 2 marketed strengths has no unexpired patent or exclusivity listed.

Blocked by patent: US 11273132.

Listed patents · 1 unexpired

PatentClaimsExpires
US 11273132product18 Nov 2033

Exclusivities · 0 unexpired

No unexpired exclusivities listed.

Paragraph IV certifications · 0

No Paragraph IV certification listed by FDA for this drug.

The list shows that a generic applicant certified to FDA that a listed patent is invalid or not infringed. It does not show litigation, settlements or launch timing.

Event history

  • 25 Oct 2026Generic approved · 207154-001

Products covered · 2

NDA · productFormStrengthListed expiry
021794 · 001 · RLDgel, topical5%open
207154 · 001 · RLDgel, topical7.5%18 Nov 2033