Which of the following drugs is useful in acute attack of gout ?
**Core Concept**
The question is testing the student's knowledge of the pharmacological management of acute gout. Gout is a form of inflammatory arthritis caused by the deposition of monosodium urate crystals in the joints. The goal of treatment is to reduce inflammation, alleviate pain, and prevent further attacks.
**Why the Correct Answer is Right**
The correct answer is Colchicine, which is a natural product derived from the plant Colchicum autumnale. Colchicine works by inhibiting microtubule polymerization, which in turn inhibits the migration of neutrophils to the site of inflammation. This action reduces the inflammatory response and alleviates pain. Colchicine is particularly useful in the treatment of acute gout because it has a rapid onset of action and can be administered orally or intravenously.
**Why Each Wrong Option is Incorrect**
* **Option A:** NSAIDs (Non-Steroidal Anti-Inflammatory Drugs) are also used to treat acute gout, but they work by inhibiting the production of prostaglandins, which are mediators of inflammation. However, NSAIDs may not be as effective as colchicine in reducing pain and inflammation in the early stages of an attack.
* **Option B:** Corticosteroids, such as prednisone, are used to treat acute gout, but they work by suppressing the immune system and reducing inflammation. Corticosteroids are more effective in reducing inflammation than colchicine, but they may have more side effects and are not always necessary in the treatment of acute gout.
* **Option C:** Allopurinol is a xanthine oxidase inhibitor that is used to prevent the formation of uric acid in patients with chronic gout. However, it is not useful in the treatment of an acute attack of gout, as it does not have a rapid onset of action and may even worsen symptoms in the short term.
**Clinical Pearl / High-Yield Fact**
Colchicine is a useful adjunct to NSAIDs and corticosteroids in the treatment of acute gout, particularly in patients who are intolerant to these medications or have a history of kidney disease. It is essential to note that colchicine should be used with caution in patients with liver disease, as it can cause liver toxicity.
**Correct Answer:** C. Colchicine.