This can be where xylazine comes in: it extends the effect of fentanyl––or, as this is often put on the road, “it presents it legs.” Including xylazine to successful can postpone cravings and withdrawal signs for twice provided that fentanyl alone. Xylazine is a common veterinary drug useful for sedation, https://angeloedbvw.bcbloggers.com/26555505/getting-my-what-class-of-drug-is-xylazine-to-work