Which of the following can he used in pregnancy?
**Core Concept**
The management of pregnancy involves careful consideration of the safety of medications for both the mother and the fetus. The use of certain medications during pregnancy can have significant implications for fetal development and maternal health.
**Why the Correct Answer is Right**
The correct answer is **C. Metformin**. Metformin is a biguanide antidiabetic medication that can be used in pregnancy, particularly in the management of gestational diabetes mellitus (GDM). It works by decreasing glucose production in the liver and increasing insulin sensitivity. Metformin has been shown to be safe for both the mother and the fetus when used appropriately. However, it is essential to monitor the patient's blood glucose levels and kidney function during treatment.
**Why Each Wrong Option is Incorrect**
**Option A:** **Chlorpropamide** is a sulfonylurea antidiabetic medication that can stimulate insulin release. It is not typically used in pregnancy due to the risk of hypoglycemia and its potential to cross the placenta.
**Option B:** **Fenfluramine** is a serotonergic antidepressant that was withdrawn from the market due to concerns about its safety and potential for causing birth defects.
**Option C:** **Metformin** (already discussed as the correct answer)
**Option D:** **Phenformin** is another biguanide antidiabetic medication, but it is not commonly used in pregnancy due to concerns about its potential for lactic acidosis.
**Clinical Pearl / High-Yield Fact**
When managing diabetes in pregnancy, it is essential to choose medications that have a proven safety profile for both the mother and the fetus. Metformin is a safe and effective option for the management of GDM, but it requires careful monitoring of blood glucose levels and kidney function.
**Correct Answer:** C. Metformin