Opportunity
Federal Register #NDA 010401
FDA Withdrawal of Approval for MYSOLINE (Primidone) Suspension, 250 mg/5 mL
Posted
September 29, 2026
Identifier
NDA 010401
This notice from the Food and Drug Administration (FDA), under the Department of Health and Human Services, announces the regulatory withdrawal of approval for MYSOLINE (primidone) suspension, 250 mg/5 mL. - Government Buyer: - Food and Drug Administration (FDA), Department of Health and Human Services - OEM/Vendor: - FHTA LLC (holder of NDA 010401) - Product Affected: - MYSOLINE (primidone) suspension, 250 mg/5 mL - NDA 010401 - Reason for Withdrawal: - Concerns about potential microbial contamination (Pseudomonas aeruginosa) - Requirement for reformulation to meet safety and effectiveness standards - Notable Requirements: - FHTA LLC agreed to withdrawal and waived hearing rights - No new formulation approved - Distribution of MYSOLINE (primidone) suspension, 250 mg/5 mL without FDA approval is prohibited - No procurement or award is being made; this is a regulatory withdrawal notice
Description
The Food and Drug Administration (FDA) is withdrawing approval of new drug application (NDA) 010401 for MYSOLINE (primidone) suspension, 250 mg/5 mL, held by FHTA LLC. The withdrawal is effective as of September 29, 2026. FHTA agreed to the withdrawal and waived its opportunity for a hearing. The withdrawal follows concerns about potential microbial contamination and the need for reformulation to meet safety and effectiveness standards.