Health

Key Facts

—The notice. Anvisa, Brazil’s medicines regulator, published a formal fact-check on 6 July under the heading that the pens showed no equivalence.

—What was tested. A Unicamp toxicology centre checked only the presence, concentration and molecular structure of tirzepatide in smuggled vials.

—What was not. Impurities, contaminants, degradation, sterility, heavy metals and, crucially, bioavailability.