For Healthcare Providers

Chloride Channels and Fluid Secretion

  • In the intestines, ClC-2 chloride channels exist to make sure the right amount of fluid is in the intestine as your body works to expel waste in the form of stool.
  • ClC-2 chloride channels help maintain fluid balance in the bowels.
  • Activation of ClC-2 chloride channels increases fluid in the bowel which can help with the passage of stool.

AMITIZA Activates Chloride Channels

  • AMITIZA goes to work in the intestine.
  • AMITIZA is the first ClC-2 chloride channel activator indicated for the treatment of Chronic Constipation in adults.
  • AMITIZA increases fluid in the bowels by specifically activating ClC-2 chloride channels in the intestines, helping stool to pass.

Indication

AMITIZA (24 mcg) twice daily is approved to treat Chronic Idiopathic Constipation in adults. "Idiopathic" means the cause of the constipation is unknown and not due to an underlying illness or medication.

Important Safety Information

AMITIZA is not for everyone. If you know or suspect you have a bowel blockage, do not take AMITIZA. If you are unsure, your healthcare provider should evaluate your condition before starting AMITIZA. You should not take AMITIZA if you have severe diarrhea.

AMITIZA has not been studied in pregnant women and should only be used during a pregnancy if the potential benefits justify the potential risk to the fetus. Women should have a negative pregnancy test before beginning treatment with AMITIZA and need to practice effective birth control measures. If you are pregnant or become pregnant while being treated with AMITIZA, talk to your healthcare provider to evaluate the risks to the fetus.

Some patients taking AMITIZA may experience nausea or diarrhea. If nausea occurs, take AMITIZA with food. If your nausea or diarrhea becomes severe, tell your healthcare provider.

Within an hour of taking AMITIZA, a sensation of chest tightness and shortness of breath may occur. These symptoms usually go away within three hours, but may recur with repeated use. Tell your healthcare provider if you experience these symptoms.

The most common side effects of taking AMITIZA (24 mcg) twice daily, orange capsules for Chronic Idiopathic Constipation are nausea, diarrhea, and headache. These are not all the side effects associated with AMITIZA.

Please click here for complete Prescribing Information.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.