Effervescent Potassium/Chloride and Onsolis

• Generic Name: potassium bicarbonate / potassium chloride
• Dosage Forms: n.a.
• Other Brand Names: Effervescent Potassium, K-Effervescent, K-vescent, K-vescent, K+Care ET, Klor-Con/EF, Effer-K, Effervescent Potassium/Chloride, K-Lyte/Cl, Klorvess Effervescent, K-Lyte/Cl 50

Potassium is a mineral that is found in many foods and is needed for several functions of your body, especially the beating of your heart.

Effervescent Potassium/Chloride is used to prevent or to treat low blood levels of potassium (hypokalemia). Potassium levels can be low as a result of a disease or from taking certain medicines, or after a prolonged illness with diarrhea or vomiting.

Effervescent Potassium/Chloride may also be used for other purposes other than those listed in this medication guide.

• Generic Name: fentanyl
• Dosage Forms: buccal soluble film
• Other Brand Names: Fentora, Onsolis, Abstral, Subsys, Actiq, Duragesic, Ionsys, Lazanda, Sublimaze

Onsolis buccal soluble film contains fentanyl, a narcotic (opioid) pain medicine.

Onsolis is used to treat "breakthrough" cancer pain that is not controlled by other medicines. Onsolis is taken together with other non-fentanyl narcotic pain medicine that is used around the clock. This medication is not for treating pain that is not cancer-related, such as general headaches or back pain.

Onsolis may also be used for purposes not listed in this medication guide.