Tenofovir is not recommended at 18 weeks of pregnancy if it is not very necessary.
Tenofovir works as an antiviral by inhibiting viral replication and has a relatively high safety profile, but it has not been shown to be risk-free to the fetus in animal reproduction tests, so the use of this medication is not recommended during pregnancy unless the situation requires it. Common adverse reactions to this drug include headache, weakness, back pain, and diarrhea.
Regardless of the need to take the drug, it is specific to the pregnant woman’s health condition, and the doctor will choose the right drug from the pregnant woman’s health condition, the pregnant woman needs to trust the doctor, consider the doctor’s advice, and follow the doctor’s instructions for the use of the drug.