Can You Take Phenibut and St. John's Wort Together?

Use extra care with this pair

The short answer

Phenibut can affect monoamine neurotransmission, and St. John's Wort increases serotonin levels. Their combination may contribute to serotonergic imbalance.

How to arrange timing

Exercise caution when combining Phenibut and St. John's Wort. This combination warrants medical supervision.

Reference

Reference noted for this combination: Lapin I. Phenibut: a tranquilizer and nootropic drug. CNS Drug Rev. 2001;7(4):471-481.

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.