**Core Concept**
The question is testing knowledge of drugs that cause myopathy, a condition characterized by muscle weakness and damage. This is a common side effect of certain medications, particularly those that affect muscle function or are metabolized by the liver.

**Why the Correct Answer is Right**
The correct answer is an antipsychotic medication that is not commonly associated with myopathy. Most antipsychotics, particularly those in the first-generation category, are known to cause extrapyramidal side effects, but not myopathy. However, some antipsychotics like risperidone and olanzapine can cause muscle weakness, but not myopathy.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it is a statin, a class of cholesterol-lowering medications that are well-known to cause myopathy. Statins inhibit HMG-CoA reductase, an enzyme involved in cholesterol synthesis, and can also affect muscle function.
* **Option B:** This option is incorrect because it is a corticosteroid, a class of medications that can cause muscle weakness and myopathy, particularly with long-term use. Corticosteroids can cause muscle atrophy and weakness by suppressing protein synthesis.
* **Option C:** This option is incorrect because it is a fluoroquinolone antibiotic, a class of medications that can cause muscle weakness and myopathy, particularly with long-term use. Fluoroquinolones can affect muscle function and cause tendinitis and tendon rupture.

**Clinical Pearl / High-Yield Fact**
Be aware that myopathy can be caused by a variety of medications, including statins, corticosteroids, and fluoroquinolones. If a patient presents with muscle weakness or pain, consider the possibility of medication-induced myopathy and discontinue the offending agent if possible.

**Correct Answer:** D.