**Question:** A patient with ischemic heart disease, diagnosed with migraine; indicated drug in this case is:

A. Aspirin
B. Beta-blocker
C. Calcium channel blocker
D. Nonsteroidal anti-inflammatory drug (NSAID)

**Core Concept:**
The question is about the appropriate treatment choice for a patient with ischemic heart disease (IHD) and concurrent migraine. In such cases, the selection of medication should consider both cardiovascular safety and migraine relief.

**Why the Correct Answer is Right:**
In this scenario, the correct medication choice is **D** - Nonsteroidal anti-inflammatory drug (NSAID). NSAIDs like ibuprofen and naproxen are commonly used for migraine relief due to their anti-inflammatory and analgesic properties. However, they should be used with caution in patients with IHD due to their potential to increase cardiovascular risk.

**Why Each Wrong Option is Incorrect:**

**A (Aspirin):**
Aspirin is a salicylic acid derivative and irreversible inhibitor of cyclooxygenase (COX) enzymes. While it is beneficial for preventing platelet aggregation and reducing cardiovascular risk in patients with IHD, it can worsen migraine due to its COX inhibition, which is essential for migraine relief.

**B (Beta-blocker):**
Beta-blockers are used for heart rate and blood pressure management in patients with IHD. While they may provide some relief for migraine symptoms, they are not specifically indicated for migraine treatment and could potentially worsen cardiovascular risk in IHD patients.

**C (Calcium channel blocker):**
Calcium channel blockers are primarily used for hypertension and angina management in patients with IHD. Although they may have some migraine relief potential, they are not specifically indicated for migraine treatment and could potentially worsen cardiovascular risk in IHD patients.

**Clinical Pearl:**
When treating patients with IHD and migraine, consider using a selective COX-2 inhibitor like celecoxib, which is less likely to worsen cardiovascular risk compared to nonselective NSAIDs like ibuprofen or naproxen. However, always evaluate the patient's migraine severity and cardiovascular risk factors before prescribing any medication.

In summary, the correct choice (D) is a selective COX-2 inhibitor like celecoxib, which reduces cardiovascular risk in IHD patients and has mild migraine relief properties. However, one should carefully assess the patient's migraine severity and cardiovascular risk factors before prescribing any medication.