Pioglitazone

Generic Name: pioglitazone

Over-the-Counter (OTC)

Brand Names:

Pioglitazone

11 DESCRIPTION Pioglitazone Tablets, USP are a thiazolidinedione and an agonist for peroxisome proliferator-activated receptor (PPAR) gamma that contains an oral antidiabetic medication: pioglitazone. Pioglitazone [(±)-5-[[4-[2-(5-ethyl-2-pyridinyl)ethoxy]phenyl]methyl]-2,4-] thiazolidinedione monohydrochloride contains one asymmetric carbon, and the compound is synthesized and used as the racemic mixture. The two enantiomers of pioglitazone interconvert in vivo .

Overview

11 DESCRIPTION Pioglitazone Tablets, USP are a thiazolidinedione and an agonist for peroxisome proliferator-activated receptor (PPAR) gamma that contains an oral antidiabetic medication: pioglitazone. Pioglitazone [(±)-5-[[4-[2-(5-ethyl-2-pyridinyl)ethoxy]phenyl]methyl]-2,4-] thiazolidinedione monohydrochloride contains one asymmetric carbon, and the compound is synthesized and used as the racemic mixture. The two enantiomers of pioglitazone interconvert in vivo .

Uses

1 INDICATIONS AND USAGE Monotherapy and Combination Therapy Pioglitazone tablets are indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus in multiple clinical settings [ see Clinical Studies ( 14 ) ]. Important Limitations of Use Pioglitazone tablets exert their antihyperglycemic effect only in the presence of endogenous insulin. Pioglitazone tablets should not be used to treat type 1 diabetes or diabetic ketoacidosis, as it would not be effective in these settings. Use caution in patients with liver disease [ see Warnings and Precautions ( 5.3 ) ].

Dosage

2 DOSAGE AND ADMINISTRATION Initiate pioglitazone tablets at 15 mg or 30 mg once daily. Limit initial dose to 15 mg once daily in patients with NYHA Class I or II heart failure. ( 2.1 ) If there is inadequate glycemic control, the dose can be increased in 15 mg increments up to a maximum of 45 mg once daily. ( 2.1 ) Obtain liver tests before starting pioglitazone tablets. If abnormal, use caution when treating with pioglitazone tablets, investigate the probable cause, treat (if possible) and follow appropriately. Monitoring liver tests while on pioglitazone tablets is not recommended in patients without liver disease. ( 5.3 ) 2.1 Recommendations for All Patients Pioglitazone tablets should be taken once daily and can be taken without regard to meals.

Side Effects

6 ADVERSE REACTIONS The following serious adverse reactions are discussed elsewhere in the labeling: Congestive heart failure [ see Boxed Warning and Warnings and Precautions ( 5.1 ) ] Edema [ see Warnings and Precautions ( 5.5 ) ] Fractures [ see Warnings and Precautions ( 5.6 ) ] Most common adverse reactions (≥ 5%) are upper respiratory tract infection, headache, sinusitis, myalgia, and pharyngitis. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Teva at 1-888-838-2872 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Interactions

7 DRUG INTERACTIONS Strong CYP2C8 inhibitors (e.g., gemfibrozil) increase pioglitazone concentrations. Limit pioglitazone dose to 15 mg daily. ( 2.3 , 7.1 ) CYP2C8 inducers (e.g., rifampin) may decrease pioglitazone concentrations. ( 7.2 ) Topiramate may decrease pioglitazone concentrations. ( 7.3 ) 7.1 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 (t 1/2 ) of pioglitazone. Therefore, the maximum recommended dose of pioglitazone is 15 mg daily if used in combination with gemfibrozil or other strong CYP2C8 inhibitors [ see Dosage and Administration ( 2.3 ) and Clinical Pharmacology ( 12.3 ) ].

Warnings

WARNING: CONGESTIVE HEART FAILURE Thiazolidinediones, including pioglitazone hydrochloride, cause or exacerbate congestive heart failure in some patients [ see Warnings and Precautions ( 5.1 ) ]. After initiation of pioglitazone hydrochloride, and after dose increases, monitor patients carefully for signs and symptoms of heart failure (e.g., excessive, rapid weight gain, dyspnea, and/or edema). 5 WARNINGS AND PRECAUTIONS Congestive heart failure: Fluid retention may occur and can exacerbate or lead to congestive heart failure. Combination use with insulin and use in congestive heart failure NYHA Class I and II may increase risk. Monitor patients for signs and symptoms. ( 5.1 ) Hypoglycemia: When used with insulin or an insulin secretagogue, a lower dose of the insulin or insulin secretagogue may be needed to reduce the risk of hypoglycemia. ( 5.2 ) Hepatic effects: Postmarketing reports of hepatic failure, sometimes fatal. Causality cannot be excluded. If liver injury is detected, promptly interrupt pioglitazone hydrochloride and assess patient for probable cause, then treat cause if possible, to resolution or stabilization. 4 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 pioglitazone tablets. Initiation in patients with established New York Heart Association (NYHA) Class III or IV heart failure [ see Boxed Warning ].

Pregnancy

8.1 Pregnancy Risk Summary Limited data with pioglitazone in pregnant women are not sufficient to determine a drug-associated risk for major birth defects or miscarriage. There are risks to the mother and fetus associated with poorly controlled diabetes in pregnancy [ see Clinical Considerations ]. In animal reproduction studies, no adverse developmental effects were observed when pioglitazone was administered to pregnant rats and rabbits during organogenesis at exposures up to 5- and 35-times the 45 mg clinical dose, respectively, based on body surface area [ see Data ].

Storage

16 HOW SUPPLIED/STORAGE AND HANDLING Pioglitazone Tablets, USP are available as follows: 30 mg: white to off-white, round flat tablets, debossed with “TEVA” on one side of the tablet and “7272” on the other side, available in NDC 71335-1333-1: 30 Tablets in a BOTTLE NDC 71335-1333-2: 60 Tablets in a BOTTLE NDC 71335-1333-3: 90 Tablets in a BOTTLE NDC 71335-1333-4: 180 Tablets in a BOTTLE Repackage...

Frequently Asked Questions

What is Pioglitazone used for?

1 INDICATIONS AND USAGE Monotherapy and Combination Therapy Pioglitazone tablets are indicated as an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus in multiple clinical settings [ see Clinical Studies ( 14 ) ]. Important Limitations of Use Pioglitazone tablets exert their antihyperglycemic effect only in the presence of endogenous insulin. Pioglitazone tablets should not be used to treat type 1 diabetes or diabetic ketoacidosis, as it would not be effective in these settings. Use caution in patients with liver disease [ see Warnings and Precautions ( 5.3 ) ].

What are the side effects of Pioglitazone?

6 ADVERSE REACTIONS The following serious adverse reactions are discussed elsewhere in the labeling: Congestive heart failure [ see Boxed Warning and Warnings and Precautions ( 5.1 ) ] Edema [ see Warnings and Precautions ( 5.5 ) ] Fractures [ see Warnings and Precautions ( 5.6 ) ] Most common adverse reactions (≥ 5%) are upper respiratory tract infection, headache, sinusitis, myalgia, and pharyngitis. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Teva at 1-888-838-2872 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Can I take Pioglitazone during pregnancy?

8.1 Pregnancy Risk Summary Limited data with pioglitazone in pregnant women are not sufficient to determine a drug-associated risk for major birth defects or miscarriage. There are risks to the mother and fetus associated with poorly controlled diabetes in pregnancy [ see Clinical Considerations ]. In animal reproduction studies, no adverse developmental effects were observed when pioglitazone was administered to pregnant rats and rabbits during organogenesis at exposures up to 5- and 35-times the 45 mg clinical dose, respectively, based on body surface area [ see Data ].

What are the important warnings for Pioglitazone?

WARNING: CONGESTIVE HEART FAILURE Thiazolidinediones, including pioglitazone hydrochloride, cause or exacerbate congestive heart failure in some patients [ see Warnings and Precautions ( 5.1 ) ]. After initiation of pioglitazone hydrochloride, and after dose increases, monitor patients carefully for signs and symptoms of heart failure (e.g., excessive, rapid weight gain, dyspnea, and/or edema). 5 WARNINGS AND PRECAUTIONS Congestive heart failure: Fluid retention may occur and can exacerbate or lead to congestive heart failure. Combination use with insulin and use in congestive heart failure NYHA Class I and II may increase risk. Monitor patients for signs and symptoms. ( 5.1 ) Hypoglycemia: When used with insulin or an insulin secretagogue, a lower dose of the insulin or insulin secretagogue may be needed to reduce the risk of hypoglycemia. ( 5.2 ) Hepatic effects: Postmarketing reports of hepatic failure, sometimes fatal. Causality cannot be excluded. If liver injury is detected, promptly interrupt pioglitazone hydrochloride and assess patient for probable cause, then treat cause if possible, to resolution or stabilization. 4 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 pioglitazone tablets. Initiation in patients with established New York Heart Association (NYHA) Class III or IV heart failure [ see Boxed Warning ].

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Medical Disclaimer

This drug information is for educational purposes only and should not replace professional medical advice. Drug information is sourced from the FDA National Drug Code Directory and Structured Product Labeling. Always consult with a healthcare provider before starting, stopping, or changing any medication.