The correct dosage of prednisone and prednisolone depends on the condition being treated and how the patient responds to the medication. A rule of thumb for dosing prednisone and prednisolone is to use as much as is required but as little as possible to achieve the desired effect. Pets should also be weaned off of prednisone as soon as their condition allows. When dogs and cats have to be on prednisone for an extended period of time, giving the medication every other day or even less frequently if possible can reduce the chances of serious side effects. Common dosages for prednisone and prednisolone in dogs in cats are
ZYTIGA ® is an inhibitor of the hepatic drug-metabolizing enzymes CYP2D6 and CYP2C8. Avoid co-administration with CYP2D6 substrates with a narrow therapeutic index. If alternative treatments cannot be used, consider a dose reduction of the CYP2D6 substrate drug. In a CYP2C8 drug interaction trial in healthy subjects, the AUC of pioglitazone, a CYP2C8 substrate, was increased by 46% when administered with a single dose of ZYTIGA ® . Patients should be monitored closely for signs of toxicity related to a CYP2C8 substrate with a narrow therapeutic index if used concomitantly with ZYTIGA ® .