Penntuss

NDA 18928, held by Fisons. Chlorpheniramine Polistirex; Codeine Polistirex.

As of Nov 13, 2026, NDA 18928 (Penntuss), held by Fisons, was not approved, with 2 approved supplements and 0 published complete response letters.

• First approved: Not approved
• Supplements approved: 2
• Complete response letters: 0

Approvals, supplements, products and documents come from FDA's Drugs@FDA data files, refreshed daily; Drugs@FDA lists approved applications only. Complete response letters are FDA's published letters. Drugs@FDA and FDA complete response letters