Immunoblockade of endogenous glucagon-like peptide-1 by monoclonal antibodies in conscious rats: effect on the insulin response to intragastric glucose
The considerations are practical rather than a hard contraindication: side-effect overlap and absorption timing

Supplement Facts: Serving Size: 1 scoop (13g) Servings Per Container: 40 Amount Per Serving: L-Citrulline: 3 g Beta Alanine: 1.6 g Betaine Anhydrous: 1.25 g L-Tyrosine: 1 g Taurine: 1 g Nitrosigine (Inositol Stabilized Arginine Silicate): 750 mg Coconut (Cocos nucifera) (Water) Powder: 250 mg Caffeine Anhydrous: 130 mg Citicoline: 125 mg Dicaffeine Malate (Infinergy): 32 mg Theobromine 99% (Novel Ingredients): 25 mg AstraGin (Panax notoginseng (root) and Astragalus membranaceus (root)): 12.5 mg *RI - Reference Intake Ingredients: L-Citrulline, Beta Alanine, Betaine Anhydrous, L-Tyrosine, Taurine, Nitrosigine (Inositol Stabilized Arginine Silicate), Coconut (Cocos nucifera) (Water) Powder, Caffeine Anhydrous, Citicoline, Dicaffeine Malate (Infinergy), Theobromine 99% (Novel Ingredients), AstraGin (Panax notoginseng (root) and Astragalus membranaceus (root)), Citric Acid, Malic Acid, Natural and Artificial Flavors, Silicon Dioxide, Calcium Silicate, Sucralose, Acesulfame Potassium, Red Beet Powder (color)

Managing Nausea and Side Effects with Site Rotation While clinical studies might show similar absorption, the real-world experience of thousands of users cannot be ignored
and galectin 3 18,114