What does the term "teratogenic" mean?

The term "teratogenic" specifically refers to substances that can cause developmental malformations or abnormalities in a fetus during pregnancy. When a drug or an environmental agent is described as teratogenic, it signifies that exposure to that agent poses a risk of causing birth defects or other serious developmental issues in the embryo or fetus. This understanding is critically important for health care providers when prescribing medications to pregnant individuals, as well as for patients to avoid potential teratogens during pregnancy.

The other options do not accurately describe teratogenic effects. For example, a drug that reduces inflammation relates to its pharmacological action and does not imply any risk of causing developmental malformations. Similarly, a medication that treats bacterial infections pertains to its therapeutic category and indicates safety only in terms of infection, not developmental risks. Lastly, stating that a drug is safe during all stages of pregnancy does not align with the definition of teratogenic, as such drugs may still carry risks at different stages or depending on dosage and timing.