All of the following drugs may be used in the treatment of ulcerative colitis Except –
**Core Concept**
Ulcerative colitis is a chronic inflammatory bowel disease characterized by inflammation and ulceration of the colonic mucosa. Treatment options for ulcerative colitis include aminosalicylates, corticosteroids, immunomodulators, and biologics, which aim to reduce inflammation and induce remission.
**Why the Correct Answer is Right**
The treatment of ulcerative colitis involves a range of pharmacological agents that target different aspects of the disease pathophysiology. Aminosalicylates, such as mesalamine, work by releasing active ingredients in the colon, where they reduce inflammation by inhibiting the production of pro-inflammatory mediators. Corticosteroids, like prednisolone, suppress the immune system and reduce inflammation. Immunomodulators, including azathioprine, modify the immune response, while biologics, such as infliximab, target specific cytokines involved in inflammation.
**Why Each Wrong Option is Incorrect**
**Option A:** This option might be incorrect if the drug is not typically used for ulcerative colitis. For example, if the drug is used primarily for Crohn's disease or other conditions.
**Option B:** This option might be incorrect if the drug has a different primary mechanism of action or is not commonly used in ulcerative colitis treatment.
**Option C:** This option might be incorrect if the drug is not effective or is contraindicated in ulcerative colitis.
**Clinical Pearl / High-Yield Fact**
It is essential to note that the choice of treatment for ulcerative colitis depends on the severity of the disease, the extent of the colon involved, and the patient's response to previous therapies. Aminosalicylates are typically used for mild to moderate disease, while corticosteroids and immunomodulators are reserved for more severe cases.
**Correct Answer: C.