Valerian Interactions
5 documented interactions — 4 warnings, 1 beneficial pair.
View the full Valerian supplement guide →Interaction warnings
Valerian + lorazepam
highValerian root contains valerenic acid and other compounds that modulate GABA-A receptor activity. Combined with lorazepam, a benzodiazepine that also enhances GABA signaling, the effect is additive CNS depression with increased risk of severe drowsiness, confusion, and impaired coordination.
Valerian + zolpidem
moderateZolpidem is a Z-drug hypnotic that selectively binds the GABA-A receptor's alpha-1 subunit. Valerian's valerenic acid also modulates GABA-A receptors, producing additive sedation and a documented delay in next-morning psychomotor recovery when the two are combined.
Valerian + diphenhydramine
moderateDiphenhydramine (a sedating antihistamine) and valerian root both produce CNS depression through GABAergic and histaminergic pathways. Used together, sedation, psychomotor impairment, and respiratory depression risks are additive.
Valerian + alcohol
moderateValerian root acts on GABA-A receptors and may inhibit GABA breakdown, producing sedative effects that are additive with alcohol's CNS depressant effects. The combination produces increased drowsiness, impaired psychomotor performance, and risk of falls, particularly in older adults.
Beneficial pairs
Related ingredients
Ingredients commonly checked alongside Valerian.
