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Why isn't my generic drug working?

Dr. Michael Roizen, MD
Internal Medicine
Remember, no drug -- brand or generic -- works exactly the same way for everyone. That's why I want you to be actively engaged in your own healthcare. If you are taking a drug that requires very precise control of the dose, a generic medication's "equivalent" status may not do the trick for you. This problem is common with thyroid medications. Even for less-demanding medical regimens, a generic drug might not work in the same way as a brand-name medication. Generic medication can use a slightly different "release" technology (altering how it gets into your system) and might have different inactive ingredients, such as binders, fillers, preservatives, coloring, and flavoring.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.