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Key takeaways Retatrutide isn't approved yet and isn't expected to launch in the UK until at least mid-2026 In clinical trials, target doses ranged from 0.5mg to 12mg weekly, with the most common being 4mg, 8mg, 9mg and 12mg Different dosing schedules were tested, with most people starting at 2mg and escalating every 4 weeks The 12mg dose produced the most weight loss (up to 28.7% after 68 weeks) Starting at 2mg rather than 4mg helped reduce side effects during escalation First to know Get an email the day retatrutide launches in the UK

Ruttimann EB, Arnold M, Hillebrand JJ, Geary N, Langhans W

Just take one stick by itself per day, or you can mix it with water or yogurt.

This longer half-life means the body continues to produce beyond the day of injection and is thought to be a great benefit as compared to other peptides that also have similar actions

"The two therapies may work best in combination, but we're still trying to figure out the best sequence and timing," he adds