03
Sep
looking under a rock

Label Changes Drive Drug Shortage for Estradiol Transdermal Patches

In November 2025 the FDA requested that manufacturers of hormonal treatments for menopausal symptoms make changes to the labeling to remove boxed warnings about a probable risk of breast cancer, cardiovascular disease, and probable dementia because new information evaluated by the Agency has made those warnings obsolete. These changes in labeling have had a dramatic […]

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26
Aug

Etomidate Under Review for Controlled Substance Classification

The Federal Register pre-publication notice published today (here) lists Etomidate as a product with possible abuse potential that will be reviewed for scheduling under the Controlled Substances Act. It is a short-acting anesthetic and mentioned often on TV medical shows when a patient is brought into the ER either unresponsive or in need of immediate […]

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21
Aug

More Product Specific Bioequivalence Recommendations Hit the Press

Today, the FDA published 55 product specific guidances (PSGs) that provide FDA’s current bioequivalence recommendations for generic products. The PSGs can be found here and the current listing represents 24 new and 31 revised PSGs. FDA says that today’s batch of 55 PSGs contain: More than 30 for products with no approved ANDAs including 15 […]

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21
Aug

FDA Issues Final Guidance on Therapeutic Equivalence

Today, the FDA issued the final guidance titled Evaluation of Therapeutic Equivalence (here). The guidance is essentially identical to one with the same title issued in July 2022. There are only a few changes from the draft guidance, which include revisions to reflect an additional process by which applicants of certain 505(b)(2) applications may request […]

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14
Aug

FDA Updates Container Closure System Packaging Guidance

The Agency has issued a 37-page draft guidance (here), that describes FDA’s current thinking regarding a wide range of issues regarding various container closure systems, packaging components and testing requirements to ensure that the proposed container closure system is appropriate for the proposed drug product. FDA says that when finalized, this draft guidance will “supersede […]

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11
Aug

OGD GDUFA IV Proposed Commitment Letter Available for Comment

After months of negotiations, the FDA published a proposed Commitment Letter for GDUFA IV, which will outline the OGD and Industry’s agreements regarding all aspects of the ANDA review and approval process. The proposed commitment letter can be found here. The 48-page document addresses all issues that have undergone negotiations regarding the proposed new iteration […]

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