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Actos (Pioglitazone Hydrochloride) - Drug Interactions, Contraindications, Overdosage, etc

 
 



DRUG INTERACTIONS

Strong CYP2C8 Inhibitors

An inhibitor of CYP2C8 (e.g., gemfibrozil) significantly increases the exposure (area under the serum concentration-time curve or AUC) and half-life (t1/2) of pioglitazone. Therefore, the maximum recommended dose of ACTOS is 15 mg daily if used in combination with gemfibrozil or other strong CYP2C8 inhibitors [see Dosage and Administration and Clinical Pharmacology].

CYP2C8 Inducers

An inducer of CYP2C8 (e.g., rifampin) may significantly decrease the exposure (AUC) of pioglitazone. Therefore, if an inducer of CYP2C8 is started or stopped during treatment with ACTOS, changes in diabetes treatment may be needed based on clinical response without exceeding the maximum recommended daily dose of 45 mg for ACTOS [see Clinical Pharmacology].

OVERDOSAGE

During controlled clinical trials, one case of overdose with ACTOS was reported. A male patient took 120 mg per day for four days, then 180 mg per day for seven days. The patient denied any clinical symptoms during this period.

In the event of overdosage, appropriate supportive treatment should be initiated according to the patient's clinical signs and symptoms.

CONTRAINDICATIONS

  • •Initiation in patients with established NYHA Class III or IV heart failure [see Boxed Warning ].
  • •Use in patients with known hypersensitivity to pioglitazone or any other component of ACTOS.

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