Supplement·Interactions·Reviewed June 9, 2026
Cannabis (THC-Dominant) interactions.
Cannabis (THC-Dominant) has 17 documented interactions in the NutriStack database: 5 to avoid or watch closely and 12 that need timing or caution. The full list, with what each pairing does, is below.
Cannabis (THC-Dominant) at a glance.
A quick, data-grounded summary. The full table is below.
Cannabis (THC-Dominant) has 17 documented interactions in the NutriStack database: 5 to avoid or watch closely and 12 that need timing or caution. The full list, with what each pairing does, is below.
Everything that interacts with cannabis (thc-dominant).
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 | Conflict | Combining THC-dominant cannabis with alcohol produces additive central nervous system depression and impairment, with greater sedation, dizziness,... details → |
| Aripiprazole | Conflict | THC-dominant cannabis can work against the treatment goals of aripiprazole in psychosis or bipolar disorder. Continued cannabis use after a... details → |
| Olanzapine | Conflict | THC-dominant cannabis can undermine olanzapine treatment by increasing relapse risk and worsening psychosis outcomes. Systematic reviews link... details → |
| Quetiapine | Conflict | THC-dominant cannabis can conflict with quetiapine's use for psychosis or bipolar mood stabilization. Continued cannabis use after psychosis onset... details → |
| Risperidone | Conflict | THC-dominant cannabis can interfere with risperidone's relapse-prevention role in psychosis. Continued cannabis use in people with psychotic... details → |
| Albuterol | Caution | Albuterol can cause tremor, palpitations, tachycardia, and ECG changes, especially with repeated rescue doses or nebulized treatment. THC-dominant... details → |
| Ashwagandha | Caution | Both can have sedative and CNS-depressant effects, so concurrent use may increase drowsiness and sedation. |
| Brimonidine | Caution | THC-dominant cannabis can add to brimonidine-related drowsiness, slowed reactions, dizziness, or blood-pressure symptoms. Brimonidine has documented... |
| Diphenhydramine | Caution | THC-dominant cannabis can add to diphenhydramine-related drowsiness, slowed reaction time, and impaired attention. Cannabis acutely impairs... details → |
| Hydrocodone | Caution | Direct hydrocodone-THC clinical studies are limited, but hydrocodone shares the opioid respiratory-depression and sedation liabilities studied with... |
| Hydroxyzine | Caution | THC-dominant cannabis can compound hydroxyzine's sedating and attention-slowing effects. Hydroxyzine has measurable next-day and same-day cognitive... details → |
| Latanoprost | Caution | THC-dominant cannabis can temporarily lower intraocular pressure, but the effect is short-lived and is not a reliable substitute for latanoprost.... details → |
| Melatonin | Caution | Both promote sedation, so taken together they can cause additive drowsiness, grogginess, and next-day impairment. |
| Oxycodone | Caution | Controlled human studies show that THC-dominant cannabis can interact meaningfully with oxycodone. One respiratory study found oxycodone reduced... details → |
| Promethazine | Caution | THC-dominant cannabis can add to promethazine-related sedation, slowed reactions, and impaired coordination. Promethazine impairs psychomotor... details → |
| Valerian Root | Caution | Valerian and THC-dominant cannabis both have sedative properties, so combining them can cause additive central nervous system depression and... |
| Warfarin | Caution | THC-dominant cannabis can raise INR and bleeding risk in people taking warfarin. Case reports describe supratherapeutic INR after recreational or... details → |
The full cannabis (thc-dominant) profile.
Benefits, dosing by goal, forms, and the cited evidence for this supplement.
Common cannabis (thc-dominant) questions.
Quick answers drawn from the table above.
What interacts with Cannabis (THC-Dominant)?
In the NutriStack database, Cannabis (THC-Dominant) has 17 documented interactions with other supplements and medications. The most notable include Alcohol, Aripiprazole, Olanzapine, Quetiapine, and Risperidone.
What should you not take with Cannabis (THC-Dominant)?
Cannabis (THC-Dominant) is flagged against 5 substances in the database, including Alcohol, Aripiprazole, Olanzapine, Quetiapine, and Risperidone. Review these with a clinician before combining, especially alongside prescription medications.
Can you take Cannabis (THC-Dominant) with Alcohol?
NutriStack classifies the Cannabis (THC-Dominant) and Alcohol pairing as conflict: Combining THC-dominant cannabis with alcohol produces additive central nervous system depression and impairment, with greater sedation, dizziness, nausea, and markedly... Do not combine. The mix sharply increases impairment and accident risk; do not drive or operate machinery, and seek medical advice if severe...
Check your whole stack
See how cannabis (thc-dominant) fits your routine.
NutriStack screens your full stack for interactions and timing conflicts, and updates the moment you change it.