Stimulants should be used in moderation and saved for times when they are truly needed, such as during weeks three and four of a powerlifting program, while weeks one and two allow adrenals to recover.

“generally speaking you got to do it moderation and especially you got to save it for the times when you really need it like in the American powerlifting system when you have during week three and four that's good time to do it during the weeks one and two when the weights are lighter lets your adrenals recover and you don't need to push yourself as hard anyway”