Use in Pregnancy and Lactation: Merislon should only be used in pregnant women or women suspected of being pregnant only if the expected therapeutic benefits are evaluated to outweigh the possible risk of treatment. (The safety of Merislon in pregnant women has not been established.)
It is not known whether betahistine is excreted in human milk so the therapeutic benefit of Merislon for lactating women should be evaluated to outweigh the possible risk to the child.