Your pharmacist must store the drug under refrigeration, but you may keep it at room temperature (up to 77 degrees F) after the first use, up to 30 days. Byetta pens that you have not used yet should be stored in the refrigerator. The medication should not be frozen, and you should not use any that has been frozen. Do not store your pens with the needles attached (this will prevent leakage). A Byetta pen should be thrown away 30 days after the first time you use it, even it there is some medication left in it.
Keep Byetta and all medications out of the reach of children.
What Should I Do If I Miss a Dose?
If you do not take your dosage as scheduled, skip your missed dose and continue with your regular schedule. Do not take it after a meal, and do not take a double dose of Byetta.
You will need pen needles to be able to inject Byetta, since it does not come with pen needles. Pen needles are special needles used for pen-injecting devices. Ask your healthcare provider about which length and gauge of pen needles will be best for you. In some situations (and in some states), you may need a prescription for pen needles, so be sure to ask your healthcare provider about whether you need a prescription for pen needles.
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Last reviewed by: KristiMonson, PharmD;
List of references (click here):
Byetta [package insert]. San Diego, CA: Amylin Pharmaceuticals, Inc.;2009 October.
Food and Drug Administration, Center for Drug Evaluation and Research. Information for healthcare professionals: reports of altered kidney function in patients using exenatide (marketed as Byetta) (11/2/2009). FDA Web site. Available at: http://www.fda.gov/Drugs/DrugSafety/PostmarketDrugSafetyInformationforPatientsandProviders/DrugSafetyInformationforHeathcareProfessionals/ucm188656.htm. Accessed November 6, 2009.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed January 15, 2007.
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