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Along with the increase in energy will likely be the increase in cognitive functioning, so you may notice an improvement in your memory and quality of sleep around the same time as the reduction in fatigue

They may contain substances that are simultaneously applied in medicinal products as defined in the pharmaceutical law, which as a matter of principle is not applicable to dietary supplements

A., Blomquist J

This product is not intended for prevention, treatment or cure of the human disease

While taking phentermine, avoid alcohol, limit caffeine, and skip other stimulant medications or supplements unless your provider approves them

Sci Rep 15 , 18857 (2025)