Pancreatitis may be seen with all of the following antiretroviral agent except: March 2005
**Core Concept**
Pancreatitis is an inflammatory condition of the pancreas, which can be caused by various factors, including medications. Antiretroviral agents, used in the treatment of HIV/AIDS, can have gastrointestinal side effects, including pancreatitis.
**Why the Correct Answer is Right**
The correct answer is related to the mechanism of action and side effect profiles of antiretroviral agents. Some of these agents, particularly protease inhibitors, have been associated with pancreatitis as a rare but serious side effect. This is thought to be due to the inhibition of pancreatic enzymes, leading to their accumulation and subsequent inflammation.
**Why Each Wrong Option is Incorrect**
**Option A:** Not specified
This option is incorrect because we do not have enough information to determine its accuracy.
**Option B:** Didanosine (ddI) is an antiretroviral agent known to cause pancreatitis as a rare but serious side effect. It is metabolized by the kidneys and can cause mitochondrial toxicity, leading to pancreatic injury.
**Option C:** Stavudine (d4T) is another antiretroviral agent that has been associated with pancreatitis, although the exact mechanism is not well understood.
**Option D:** Raltegravir is an integrase inhibitor, a class of antiretroviral agents that have been shown to have a more favorable side effect profile compared to protease inhibitors and nucleoside reverse transcriptase inhibitors (NRTIs). It is not commonly associated with pancreatitis.
**Clinical Pearl / High-Yield Fact**
When prescribing antiretroviral therapy, clinicians should be aware of the potential for pancreatitis, particularly with protease inhibitors and NRTIs, and monitor patients closely for symptoms such as abdominal pain and nausea.
**Correct Answer:** D. Raltegravir