Bariatric surgery may change the way your body absorbs both prescription and over-the-counter medications. Moreover, as your obesity-related health conditions improve, your medications may change.
You should discuss your medication regimen with your physician in the months prior to the surgery.
Gastric sleeve surgery generally does not affect the way the body absorbs medication.
Gastric bypass surgery may alter the way your body absorbs medication. In some cases, patients may need increased dosages of a drug to receive the same affect. In addition, some non-steroidal, anti-inflammatory drugs (Aspirin and NSAIDs) can cause ulcers or stomach irritation in patients who have undergone gastric bypass.
Learn about Birth Control and Weight Loss Surgery in this article from UPMC Health Beat.