One page we reviewed says no side effects have been reported, then lists digestive discomfort, headache and drowsiness. Both cannot be true, so here is a careful version.
Possible Effects
- Drowsiness, mainly from GABA and L-Tryptophan
- Stomach upset from amino acids or tea extract
- Headache or trouble sleeping, noted with ginseng and caffeine-containing extracts
Interaction Cautions
- Sedatives and sleep aids: added drowsiness
- Antidepressants such as SSRIs: tryptophan can be risky
- Blood thinners: ginseng and grape extracts
- Diabetes medicines: ginseng may affect blood sugar
- Blood pressure medicines and stimulants: ask your pharmacist
Who Should Skip Or Ask First
Anyone under 18, pregnant or nursing, or with liver, seizure or mood conditions. See the ingredient guide and label-reading guide. More at the FDA.
*These statements have not been evaluated by the Food and Drug Administration. This is not medical advice.
