Metolazone*

Labeling for this product contains a bolded warning at the BEGINNING of the package insert THAT IS NOT BOXED.

Do Not Interchange

  • Do not interchange Zaroxolyn tablets and other formulations of metolazone that share its slow and incomplete bioavailability and are NOT therapeutically equivalent at the same doses to Mykrox tablets, a more rapidly available and completely bioavailable metolazone product.
  • Formulations bioequivalent to Zaroxolyn and formulations bioequivalent to Mykrox should NOT be interchanged for one another.

Patient counseling

Package inserts

Additional information

Updated: January 2018