Exenatide FAQ: common questions answered
An older GLP-1 with twice-daily and weekly forms, now widely discontinued.
Also called: Byetta, Bydureon, Bydureon BCise, exendin-4, AC2993, ITCA 650.
GLP-1 / GIP / glucagon agonists · GLP-1 receptor agonist · Evidence: Approved drug.
- Is Exenatide FDA-approved? Yes: Byetta, historical (adult type 2 diabetes; NDA021773 approval withdrawn effective September 3, 2025.); Bydureon, historical (weekly type 2 diabetes depot; US approval withdrawn.); Bydureon BCise, historical (historical type 2 diabetes depot, ages 10+. NDA209210 appears in withdrawal notices effective September 3, 2025 and April 8, 2026; the later notice does not establish its first withdrawal.). Compound approval, brand withdrawal and supply differ. Generic label remains online; FDA lists discontinued products and a separate prescription NDA021919. Stock is unconfirmed.
- How do people take it? Under the skin, twice daily. Source: drug label.
- Can I take it with Metformin? Studied and reported diabetes pairing with immediate-release or weekly exenatide. Overlapping stomach upset can worsen hydration. Source: studied in a trial. Ask a doctor before combining anything.
- Is it banned in sport? No, it is not on the banned list (WADA 2026). The 2026 monitoring program names semaglutide and tirzepatide, not this drug. Approved GLP-1 medicines remain permitted.
- How do I store it once opened? Immediate-release pen: after first use ≤25°C, discard at 30 days. BCise: ≤30°C for a total of 4 weeks; use immediately after preparing.
Related to Exenatide
- Semaglutide: A GLP-1 medicine with strong weight, glucose, heart and kidney evidence; dose and formulation matter.
- Tirzepatide: A weekly GIP/GLP-1 injection with strong diabetes and weight-loss evidence and common stomach side effects.
- Retatrutide: An experimental weekly injection with phase 3 weight-loss results.
- Liraglutide: A daily GLP-1 injection approved for weight management and type 2 diabetes.
- Dulaglutide: A weekly GLP-1 medicine approved for type 2 diabetes and lower heart-event risk.
Sources
- 9. Pharmacologic Approaches to Glycemic Treatment: Standards of Care in Diabetes—2026, 2026
- Aspen Global Inc. c/o Lachman Consultant Services, Inc., et al.; Withdrawal of Approval of 46 New Drug Applications, 2026
- Bulk Drug Substances Used in Compounding Under Section 503A of the FD&C Act, FDA · FDA · 2026
- Compounding and the FDA: Questions and Answers, FDA · FDA · 2026
- Consensus-based clinical and research recommendations for use of glucagon-like peptide-1 receptor agonists in the context of eating disorders: a modified Delphi study., Keshen A et al. · World psychiatry : official journal of the World Psychiatric Association (WPA) · 2026
- DailyMed - EXENATIDE injection, 2026
- GLP-1 receptor agonists and dual GLP-1/GIP receptor agonists: strengthened warnings on acute pancreatitis, including necrotising and fatal cases, 2026
- The 2026 Monitoring Program, World Anti-Doping Agency · 2026
- Therapeutic Goods (Poisons Standard—October 2026) Instrument 2026, Australian Government · Australian Government · 2026
- TRULICITY, 2026
- Weight Loss Drugs: What athletes need to know about GLP-1s, USADA · 2026
- DailyMed - BYDUREON BCISE- exenatide injection, suspension, extended release, 2025
- Nutritional priorities to support GLP-1 therapy for obesity: A joint advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and the Obesity Society., Mozaffarian D et al. · Obesity pillars · 2025
- Teva Branded Pharmaceutical Products R&D, Inc., et al.; Withdrawal of Approval of 39 New Drug Applications, 2025
- 2024 First Generic Drug Approvals, 2024
Sources checked: 2026-10-18.
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