**Core Concept**
Bland cholestasis, also known as cholestasis of pregnancy, is a condition characterized by the reduction or stoppage of bile flow from the liver to the intestine. Certain medications can cause cholestasis by disrupting normal liver function or bile salt metabolism.

**Why the Correct Answer is Right**
Chlorpromazine, an antipsychotic medication, is not typically associated with causing cholestasis. The other options, androgen, OCP (oral contraceptive pills), and cyclosporine, have been linked to cholestasis due to their effects on liver function and bile salt metabolism. Androgenic substances can cause cholestasis by increasing the production of bile salts and altering their metabolism. OCPs can also cause cholestasis, particularly in susceptible individuals, due to their hormonal effects on the liver. Cyclosporine, an immunosuppressant, can cause cholestasis as a side effect, possibly due to its effects on liver blood flow and bile salt secretion.

**Why Each Wrong Option is Incorrect**
**Option A:** Androgenic substances are known to cause cholestasis by disrupting normal bile salt metabolism and increasing their production.
**Option B:** OCPs have been linked to cholestasis, particularly in susceptible individuals, due to their hormonal effects on the liver.
**Option C:** Cyclosporine can cause cholestasis as a side effect, possibly due to its effects on liver blood flow and bile salt secretion.

**Clinical Pearl / High-Yield Fact**
It's essential to recognize that certain medications can cause cholestasis, which can be a sign of underlying liver dysfunction. This is particularly relevant in pregnancy, where cholestasis of pregnancy can lead to complications for both mother and fetus.

**✓ Correct Answer: D. Chlorpromazine**