Gulfstream Daily Brief

Regulatory intelligence and policy · Issue 020

FDA addresses drug approvals and information collection, MHRA updates device guidance

Today’s official updates cover FDA drug approval actions and information collection notices, alongside MHRA guidance for COVID-19 tests and exceptional device use.

By Scott Morvay, Founder September 29, 2026 Official sources linked

FDA

FDA finds sulfadiazine tablets were not withdrawn for safety or effectiveness reasons

FDA determined that SULFADIAZINE 500 mg tablets were not withdrawn for safety or effectiveness reasons. The agency may approve ANDAs if all other legal and regulatory requirements are met.

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FDA

FDA withdraws approval of the Mysoline suspension NDA

FDA is withdrawing approval of NDA 010401 for MYSOLINE (primidone) suspension, 250 mg/5 mL. Application holder FHTA LLC agreed to the withdrawal and waived a hearing.

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FDA

FDA opens comment on an information collection

FDA announced a 60 day public comment opportunity concerning a proposed information collection. The notice solicits comments on requirements for tracking medical devices.

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FDA

FDA sends additive petition collection to OMB

FDA submitted a proposed information collection covering food and color additive petitions, related master files and electronic Form 3503 submissions to OMB for review and clearance.

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MHRA

MHRA updates guidance on COVID-19 test approval

MHRA published guidance explaining how manufacturers or distributors can apply for approval to place COVID-19 test devices on the UK market.

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MHRA

MHRA updates exceptional use authorisation information

MHRA published its list of manufacturers and medical devices granted exemptions, including exemptions that expired or were cancelled.

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Why this matters

The FDA actions clarify the regulatory status of two established drugs and identify active information collection processes. The MHRA updates give device manufacturers current reference points for UK COVID-19 test approvals and exceptional use authorisations.

Scott Morvay

Founder, Gulfstream Intelligence

This brief provides general regulatory news and educational information. It is not legal or regulatory advice.