They can be injected during the same session, but they should not be mixed in the same vial
doi: 10.1016/j.yexcr.2016.12.006 55 HanNWangZLuoHChiYZhangTWangBet al
Ingredients: Water, L-Carnitine L-Tartrate, Acid (Citric acid), Acids (Citric acid, Tartaric acid, Malic acid), L-ascorbic acid, Preservatives (Potassium sorbate, Sodium benzoate), Sweeteners (Acesulfame-K, Sucralose), Flavourings, Thiamine Hydrochloride, D-pantothenate calcium, Colours (Caramel, Ponceau 4R**), Pyridoxine hydrochloride.**Ponceau 4R May have an adverse effect on activity and attention in children
Fitzgerald, P
04 Dosaggio L-carnitina: Quanto al Giorno
This is a sign however that they are working as intended