Retatrutide is a synthetic 39-amino acid peptide engineered to activate GLP-1, GIP, and glucagon receptors with a distinctive binding profile
Intramuscular injection was not studied in clinical trials
(3) A Bjartell, R Ekman, S Bergquist, and E Widerlv (1989) Reduction of immunoreactive ACTH in plasma following intravenous injection of delta sleep-inducing peptide in man Psychoneuroendocrinology, 1989, Volume 14 (Issue 5), Pages 347-55
Davies M, Pieber TR, Hartoft-Nielsen M-L, Hansen OKH, Jabbour S, Rosenstock J (2017) Effect of oral semaglutide compared with placebo and subcutaneous semaglutide on glycemic control in patients with type 2 diabetes: a randomized clinical trial
Feeding a varied, meat-forward diet often covers your dog's needs without any pills at all