An Overview of H2 Blockers and Pregnancy
For people who are pregnant, H2
blockers are generally considered safe. This is based on previous animal studies involving H2
blockers and pregnancy.
H2 Blockers and Pregnancy Category B
The U.S. Food and Drug Administration (FDA) uses a pregnancy category system to classify the possible risks to a fetus when a specific medicine is taken during pregnancy. Pregnancy Category B is given to medicines that have not been studied in pregnant humans but do not appear to cause harm to the fetus in animal studies.
However, it is important to note that the full risks of using H2 blockers during pregnancy are not known. Therefore, a pregnancy Category B medicine should be given to pregnant women only if the healthcare provider believes that the benefits to the pregnant woman outweigh any possible risks to the unborn child.
A Summary of H2 Blockers and Pregnancy
If you are pregnant or thinking about becoming pregnant and have been prescribed an H2
blocker, let your healthcare provider know. Your healthcare provider will consider both the benefits and risks of H2
blockers during pregnancy before making a recommendation for your particular situation.