Which of the following drugs is not used in Rheumatoid ahritis?
**Core Concept**
Rheumatoid arthritis is a chronic autoimmune disorder characterized by inflammation and joint destruction. The treatment of rheumatoid arthritis involves non-biological and biological disease-modifying anti-rheumatic drugs (DMARDs), corticosteroids, and analgesics to manage symptoms and slow disease progression.
**Why the Correct Answer is Right**
Biological DMARDs, such as tumor necrosis factor-alpha inhibitors (e.g., etanercept, adalimumab), interleukin-1 inhibitors (e.g., anakinra), and interleukin-6 inhibitors (e.g., tocilizumab), target specific molecular pathways involved in inflammation and joint destruction. Corticosteroids, like prednisolone, are used to reduce inflammation and suppress the immune system. Analgesics, including NSAIDs and opioids, manage pain and discomfort. However, some drugs are not typically used in the treatment of rheumatoid arthritis.
**Why Each Wrong Option is Incorrect**
**Option A:** Methotrexate is a widely used DMARD in rheumatoid arthritis, particularly as a first-line treatment.
**Option B:** Sulfasalazine is another DMARD commonly used in rheumatoid arthritis to reduce inflammation and slow disease progression.
**Option C:** Hydroxychloroquine is an antimalarial drug also used in rheumatoid arthritis to reduce inflammation and slow disease progression.
**Clinical Pearl / High-Yield Fact**
In rheumatoid arthritis, early initiation of DMARDs, including biological agents, is crucial to achieve optimal outcomes and prevent joint damage.
**Correct Answer:** D