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heat will be absorbed and the products will be formed faster exothermic reaction will undergo spontaneously as it does not require any energy while endothermic reaction has to be supplied with energy to happen therefore exothermic reaction will be faster than endothermic reaction
Specifically, the more acidic your urine (low pH), the faster youâll excrete Vyvanse. The half-life of Vyvanse in acidic urine can drop to just 8 hours, whereas its half-life in alkaline (high pH) urine can increase between 16 and 31 hours.