Can You Take Armodafinil and Caffeine Together?

Dose or timing may matter

The short answer

Armodafinil and caffeine are both wakefulness-promoting agents. Combining them can excessively stimulate the central nervous system, leading to anxiety, increased heart rate, elevated blood pressure, and insomnia.

How to arrange timing

Reduce caffeine intake significantly when using Armodafinil. Avoid caffeine after noon to prevent sleep disruption.

Reference

Reference noted for this combination: Darwish M, et al. Armodafinil and modafinil have substantially different pharmacokinetic profiles despite having the same terminal half-lives. Clin Drug Investig. 2009;29(9):613-623.

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.