Can You Take Caffeine and DMHA Together?

Use extra care with this pair

The short answer

Both caffeine and DMHA (2-aminoisoheptane) are central nervous system stimulants. DMHA acts as a sympathomimetic amine similar to DMAA. Combining them can produce additive cardiovascular stimulation including elevated heart rate and blood pressure.

How to arrange timing

Use extreme caution when combining stimulants. Reduce doses of both and monitor heart rate and blood pressure. Avoid if you have cardiovascular conditions.

Reference

Reference noted for this combination: Cohen PA et al. A synthetic stimulant never tested in humans, 1,3-dimethylbutylamine (DMBA), is identified in multiple dietary supplements. Drug Test Anal. 2016;8(8):836-843

Important context

Whether supplements suit you together also depends on dose, product formulation, health conditions, and medication use. Ask a doctor or pharmacist first if you take medication, are pregnant or breastfeeding, or have a chronic condition.