**Core Concept**
Amiodarone is an antiarrhythmic medication used to treat various types of irregular heartbeats. Its use in pregnancy is a concern due to potential fetal and maternal risks.

**Why the Correct Answer is Right**
Amiodarone is classified as a Category D medication in pregnancy, which means there is evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks. This classification is due to the high risk of thyroid dysfunction, pulmonary toxicity, and neonatal hypothyroidism associated with in utero exposure to amiodarone.

**Why Each Wrong Option is Incorrect**
**Option A:** Category A is incorrect because Amiodarone has not been consistently shown to be safe in human studies and has potential fetal risks.
**Option B:** Category B is incorrect because while some animal studies may show no fetal risks, human studies have demonstrated potential risks to the fetus.
**Option C:** Category C is incorrect because while there are potential benefits to using amiodarone in pregnant women, the risks associated with its use outweigh its benefits, making Category D a more accurate classification.

**Clinical Pearl / High-Yield Fact**
When considering antiarrhythmic medications in pregnancy, it's essential to weigh the potential benefits against the risks of fetal exposure. Amiodarone's high risk of thyroid dysfunction and pulmonary toxicity in both the mother and fetus make it a medication that should be used with caution or avoided whenever possible.

**Correct Answer: D. Amiodarone is a Category D medication in pregnancy.**