BUSINESS

Eisai Flags Nitrosamine Found in Merislon, Says Supply to Continue

December 16, 2025
Eisai and distribution partner Kaken Pharmaceutical said on December 15 that nitrosamine impurities were detected in Merislon (betahistine mesilate), a treatment for vertigo and equilibrium disturbances. They concluded, however, that no action such as stopping or changing prescriptions is needed…

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BUSINESS

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