What is the pregnancy category for Diltiazem Hydrochloride?

Diltiazem Hydrochloride is classified under Category C for pregnancy. This classification indicates that studies in animals have shown adverse effects on the fetus, but there are no adequate and well-controlled studies in pregnant women. It suggests that the drug can be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

In this case, it is important to note that while Diltiazem does not fall into the Category A (which indicates no risk), Category X (which indicates that the drug is contraindicated in pregnancy), or the designation of "None," it appropriately fits into Category C due to the balance of risks and benefits based on available data. Therefore, C as an answer aligns correctly with its established pregnancy category classification, underscoring the need for careful consideration when prescribing this medication to pregnant individuals.