New Generics and Biosimilars = New Substitution Error Risks

December 2025

Many big drugs are going generic or getting biosimilars.

Watch for potential formulary changes...and substitution errors.

Generic liraglutide (Saxenda) is the first generic GLP-1 agonist for obesity. But it still costs about $1,170/month versus $1,350 for Saxenda.

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