Supplement·Interactions·Reviewed June 9, 2026
Ketamine interactions.
Ketamine has 4 documented interactions in the NutriStack database: 1 to avoid or watch closely and 3 that need timing or caution. The full list, with what each pairing does, is below.
Ketamine at a glance.
A quick, data-grounded summary. The full table is below.
Ketamine has 4 documented interactions in the NutriStack database: 1 to avoid or watch closely and 3 that need timing or caution. The full list, with what each pairing does, is below.
Everything that interacts with ketamine.
Every supplement and medication in the NutriStack database with a documented interaction with this substance, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Alcohol | Contraindicated | Combining ketamine with alcohol produces additive central nervous system and respiratory depression, raising the risk of profound sedation, airway... details → |
| GABA | Caution | Supplemental GABA used as a calming or sleep aid may add to ketamine's sedative and dissociative load, deepening drowsiness and impairing... |
| Melatonin | Caution | Melatonin taken as a sleep aid can add to ketamine's sedating effects, increasing drowsiness and impairing alertness and coordination. |
| Valerian Root | Caution | Valerian root has sedative-hypnotic activity that can add to ketamine's central depressant and dissociative effects, increasing drowsiness,... details → |
The full ketamine profile.
Benefits, dosing by goal, forms, and the cited evidence for this supplement.
Common ketamine questions.
Quick answers drawn from the table above.
What interacts with Ketamine?
In the NutriStack database, Ketamine has 4 documented interactions with other supplements and medications. The most notable include Alcohol, GABA, Melatonin, and Valerian Root.
What should you not take with Ketamine?
Ketamine is flagged against 1 substance in the database, including Alcohol. Review these with a clinician before combining, especially alongside prescription medications.
Can you take Ketamine with Alcohol?
NutriStack classifies the Ketamine and Alcohol pairing as contraindicated: Combining ketamine with alcohol produces additive central nervous system and respiratory depression, raising the risk of profound sedation, airway compromise, vomiting... Do not combine. If both have been taken together and breathing is slow or shallow, consciousness is impaired, or vomiting occurs, seek emergency...
Check your whole stack
See how ketamine fits your routine.
NutriStack screens your full stack for interactions and timing conflicts, and updates the moment you change it.