**Question:** Sulphasalazine is NOT used for the treatment of

A. Rheumatoid Arthritis
B. Urinary Tract Infections
C. Pneumonia
D. Asthma

**Correct Answer:** D. Asthma

**Core Concept:**
Sulphasalazine is a medication primarily used in the management of autoimmune inflammatory disorders like Rheumatoid Arthritis (RA), Colitis, and Psoriasis. It is a synthetic drug combining sulpha (sulfa) and a salicylic acid derivative, which is designed to target inflammation caused by these conditions.

**Why the Correct Answer is Right:**
Sulphasalazine is specifically indicated for treating inflammatory conditions involving the gastrointestinal tract, joints, or skin. It works by inhibiting the production of prostaglandins, which are inflammatory mediators, and is particularly effective in suppressing the immune system's overactive response in autoimmune diseases.

**Why Each Wrong Option is Incorrect:**

A. Rheumatoid Arthritis: As mentioned above, sulphasalazine is a common treatment for RA due to its anti-inflammatory properties.

B. Urinary Tract Infections (UTIs): Sulphasalazine is not used for treating UTIs, which primarily require antibiotics.

C. Pneumonia: Sulphasalazine is not indicated for treating bacterial or viral infections like pneumonia, which require specific antiviral or antibiotic therapy.

D. Asthma: Sulphasalazine is not used in the management of asthma, which is typically treated with corticosteroids, bronchodilators, and leukotriene modifiers.

**Clinical Pearl:**

While sulphasalazine has been used in the past for its anti-inflammatory effects, it has been replaced by more specific and effective treatments for autoimmune conditions and inflammatory disorders. Sulphasalazine is not indicated for asthma, which is a separate group of conditions involving airway inflammation and bronchoconstriction, and requires different therapeutic approaches.