gaba
16 interactions related to gaba
lemon balm + valerian
Lemon balm (Melissa officinalis) and valerian (Valeriana officinalis) both modulate the GABAergic system but through different mechanisms — valerian's valerenic acid acts directly on GABA-A receptors while lemon balm's rosmarinic acid inhibits GABA transaminase to preserve GABA in the synapse — and the combination has been studied for restlessness, dyssomnia, and sleep quality.
clonazepam + passionflower
Passionflower contains constituents that bind GABA-A receptors and may enhance the binding activity of benzodiazepines at those receptors. Combined with clonazepam, the effect is additive central nervous system depression and increased sedation.
lorazepam + valerian
Valerian 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.
diazepam + kava
Kava's kavalactones bind GABA-A receptors and produce additive central nervous system depression when combined with diazepam, a long-acting benzodiazepine. Concurrent use is not recommended due to risk of excessive sedation, impaired coordination, and potential additive hepatotoxicity.
alprazolam + kava
Kava contains kavalactones that potentiate GABA-A receptor binding, producing additive CNS depression when combined with alprazolam, a benzodiazepine that also enhances GABA-A activity. A published case report describes a 54-year-old man who became semi-comatose after taking alprazolam with kava for three days.
zolpidem + valerian
Zolpidem 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.
ashwagandha + magnesium
Ashwagandha modulates the HPA stress axis and lowers cortisol while magnesium acts as a cofactor for GABAergic and parasympathetic relaxation pathways, giving complementary mechanisms for sleep and stress support.
ashwagandha + l-theanine
L-theanine acts within 30-60 minutes to increase alpha brain waves and modestly elevate GABA, producing immediate relaxation without sedation. Ashwagandha builds resilience over weeks by lowering cortisol and modulating the HPA axis. Combined, the pair delivers both fast-acting calm and longer-term stress resilience. Direct combination trials in humans are limited; the rationale is mechanistic.
gaba + l-theanine
GABA and L-theanine combined produce a synergistic effect on sleep onset and quality that neither produces alone. A 2019 study in Pharmaceutical Biology showed the mixture decreased sleep latency by roughly 20% and increased non-REM sleep duration by roughly 20% compared to either ingredient alone. A 2023 human study found improvements in sleep quality scores with the combination.
passionflower + lemon balm
Passionflower (Passiflora incarnata) contains flavonoids that act as positive modulators at the GABA-A receptor benzodiazepine site, while lemon balm (Melissa officinalis) inhibits GABA transaminase, the enzyme that breaks down GABA. The two herbs raise GABAergic tone through complementary mechanisms - one boosts receptor activity, the other extends GABA's half-life - which is the basis for several traditional anxiolytic and sleep formulas.
alcohol + alprazolam
Alcohol and alprazolam (Xanax) both depress the central nervous system through GABA-A receptor potentiation, producing additive sedation, profound respiratory depression, and impaired psychomotor function. The combination significantly increases risk of overdose death, even at moderate doses of each substance.
alcohol + diazepam
Diazepam (Valium) and alcohol are both GABA-A receptor positive allosteric modulators, producing additive and supra-additive CNS depression with profound risk of respiratory depression, coma, and death. Diazepam's long half-life and active metabolites extend the window of dangerous interaction far beyond the dosing interval.
alcohol + zolpidem
Zolpidem (Ambien) and alcohol both potentiate GABA-A receptor activity at the alpha-1 subunit, producing additive sedation, profound impairment of psychomotor performance, and significantly elevated risk of complex sleep behaviors, falls, respiratory depression, and motor vehicle crashes. Alcohol also increases zolpidem absorption and peak concentrations.
valerian tea + benzodiazepines
Valerian (Valeriana officinalis) modulates GABA-A receptors, the same target as benzodiazepines, producing additive central nervous system depression. Co-use can cause excessive sedation, impaired psychomotor performance, and prolonged drowsiness, especially with alcohol or in older adults.
l-theanine + magnesium
L-theanine increases alpha-wave activity, raises GABA, serotonin and dopamine, and crosses the blood-brain barrier readily, while magnesium acts as an NMDA antagonist and positive GABA-A modulator. Dasdelen et al (Frontiers in Nutrition, 2022) showed that a magnesium-L-theanine complex outperformed L-theanine alone for reducing sleep latency, restoring caffeine-suppressed slow waves, and increasing GABAergic and serotonergic receptor expression in rats.
alcohol + valerian
Valerian 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.