Delta-8-tetrahydrocannabinol (delta-8-thc) + Pilocarpine
Pilocarpine brand names: Salagen, Pilocar, Vuity, Qlosi.
We found no known interaction between Delta-8-tetrahydrocannabinol (delta-8-thc) and Pilocarpine in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.
Delta-8-tetrahydrocannabinol (delta-8-thc) and Pilocarpine
We checked these two against our interaction database. Here is what we found.
No Known Interaction Found
We did not find a documented interaction between Pilocarpine and Delta-8-tetrahydrocannabinol (delta-8-thc) in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.
Worth understanding: our licensed dataset holds no drug-interaction record for Delta-8-tetrahydrocannabinol (delta-8-thc) at all — not against Pilocarpine, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.
If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.
Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.
Delta-8-tetrahydrocannabinol (delta-8-thc) safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
What Pilocarpine Is Prescribed For, and What Delta-8-tetrahydrocannabinol (delta-8-thc) Has Been Studied For
These two come up together because they touch the same health topic — not because they do the same job. Pilocarpine is a prescription medicine with approved uses on its FDA label. Delta-8-tetrahydrocannabinol (delta-8-thc) is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.
Pilocarpine is prescribed for: Pilocarpine is used in two main ways, depending on the product. Eye drops treat certain eye conditions. Tablets treat dry mouth. Pilocarpine hydrochloride ophthalmic solution (the glaucoma product) is used to lower raised eye pressure in open-angle glaucoma or ocular hypertension.
Read the rest of what Pilocarpine is prescribed for
It is also used for acute angle-closure glaucoma, to prevent raised eye pressure after laser surgery, and to constrict the pupil (miosis). Vuity, Qlosi and a separate pilocarpine hydrochloride ophthalmic solution are used for presbyopia in adults. Pilocarpine hydrochloride tablets and Salagen tablets treat dry mouth from radiation therapy for head and neck cancer and dry mouth in Sjogren's syndrome.
Delta-8-tetrahydrocannabinol (delta-8-thc) has been studied for:
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Glaucoma studied, not established Delta-8-tetrahydrocannabinol (delta-8-thc) has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows
Delta-8-tetrahydrocannabinol (delta-8-thc) for glaucoma
Although there has been interest in using oral delta-8-THC for glaucoma, there is insufficient reliable information about the clinical effects of delta-8-THC for this purpose.
Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Pilocarpine on your own; if you are taking Delta-8-tetrahydrocannabinol (delta-8-thc) for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.
See Every Supplement That Interacts With Pilocarpine
This page covers Delta-8-tetrahydrocannabinol (delta-8-thc) only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Pilocarpine page lists 40 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Bacopa (moderate), Bael (moderate), Betel Nut (moderate) and Boxwood (moderate).
By severity: 1 major · 28 moderate · 11 minor.
From our pharmacist’s overview on the Pilocarpine page
“Pilocarpine stimulates the body's cholinergic system, whether as Salagen tablets for the dry mouth of Sjogren's or radiation treatment or as eye drops like Vuity, and its supplement list calls for real care. The one major-rated interaction among the 40 on file is activated charcoal, which soaks up the drug in the gut and can cut how mu…”
Reviewed by 2 · Jul 18, 2026
Where Delta-8-tetrahydrocannabinol (delta-8-thc) and Pilocarpine Sit Against Everything Else
Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.
#799 of 1,452 supplements looked up here in the last 7 days
#1,619 of 2,830 medications looked up here in the last 7 days
Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.
Where does our data come from?
- Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
- Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Delta-8-tetrahydrocannabinol (delta-8-thc) reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Delta-8-tetrahydrocannabinol (delta-8-thc) and Pilocarpine records this page draws on were last updated July 10, 2026.
- What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
About Delta-8-tetrahydrocannabinol (delta-8-thc)
What is Delta-8-tetrahydrocannabinol (delta-8-thc)?
- Relaxation and mild euphoria
- Anxiety and stress
- Sleep problems
- Pain relief
- Nausea
- Appetite stimulation
Delta-8-THC is a mind-altering cannabis compound, usually made by chemically converting CBD from hemp, that produces effects similar to but often milder than regular (delta-9) THC. There is very little quality human research on its benefits, and the FDA has warned about safety concerns, unregulated products, and reports of harm. Its legal status varies, and it is not recommended during pregnancy, breastfeeding, or for people who must avoid intoxication.
Cannabinoid derived from hemp (Cannabis sativa) · Gummies, vape cartridges, tinctures, edibles, capsules, flower sprayed with extract
An interaction check asks whether these two react with each other — it does not ask whether Delta-8-tetrahydrocannabinol (delta-8-thc) is a good idea for someone in your situation. Here is what our Delta-8-tetrahydrocannabinol (delta-8-thc) record says about it on its own.
Delta-8-tetrahydrocannabinol (delta-8-thc): dosing
There is no established or standardized safe dose for delta-8-THC. Products vary widely in strength, and because the market is poorly regulated, the amount listed on the label may not match what is actually in the product.If a product is used, the general harm-reduction advice is to "start low and go slow," follow the product label, and wait long enough to feel the effects—edibles in particular can take a couple of hours to kick in, leading some people to take too much.
From our Delta-8-tetrahydrocannabinol (delta-8-thc) monograph — the full record covers uses, side effects and every documented interaction.
About Pilocarpine
What Is Pilocarpine Used For?
Brand names: Salagen, Pilocar, Vuity, Qlosi
Pilocarpine is used in two main ways, depending on the product. Eye drops treat certain eye conditions. Tablets treat dry mouth.
Pilocarpine hydrochloride ophthalmic solution (the glaucoma product) is used to lower raised eye pressure in open-angle glaucoma or ocular hypertension. It is also used for acute angle-closure glaucoma, to prevent raised eye pressure after laser surgery, and to constrict the pupil (miosis). Vuity, Qlosi and a separate pilocarpine hydrochloride ophthalmic solution are used for presbyopia in adults. Pilocarpine hydrochloride tablets and Salagen tablets treat dry mouth from radiation therapy for head and neck cancer and dry mouth in Sjogren's syndrome.
Other Drugs & Delta-8-tetrahydrocannabinol (delta-8-thc)
Browse every other medication we’ve checked against Delta-8-tetrahydrocannabinol (delta-8-thc) — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Delta-8-tetrahydrocannabinol (delta-8-thc) against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
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- Methamphetamine ›
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- Gabapentin ›
- Dextroamphetamine ›
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- Acetaminophen, Aspirin, Caffeine ›
- Naproxen ›
- Lamotrigine ›
- Quetiapine ›
- Acyclovir ›
- Clonazepam ›
- Buspirone ›
- Omeprazole ›
- Letrozole ›
- Duloxetine ›
- Citalopram ›
- Methylene Blue ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Delta-8-tetrahydrocannabinol (delta-8-thc) list.
Delta-8-tetrahydrocannabinol (delta-8-thc) References
The 11 references that drive our Delta-8-tetrahydrocannabinol (delta-8-thc) monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.
- Johnson-Arbor K, Smolinske S. The current state of delta-8 THC. Am J Emerg Med 2021. PubMed
- Rosenthal J, Howell M, Earl V, Malik M. Cannabinoid hyperemesis syndrome secondary to delta-8 THC use. Am J Med 2021. PubMed
- US Food and Drug Administration (FDA). 5 things to know about delta-8 tetrahydrocannabinol - delta-8 THC. September 2021. https://www.fda.gov/consumers/consumer-updates/5-things-know-about-delta-8-tetrahydrocannabinol-delta-8-thc. Accessed October 2, 2021
- Centers for Disease Control and Prevention (CDC). Increases in availability of cannabis products containing delta-8 THC and reported cases of adverse events. September 2021. https://emergency.cdc.gov/han/2021/han00451.asp. Accessed October 2, 2021.
- Akpunonu P, Baum RA, Reckers A, et al. Sedation and Acute Encephalopathy in a Pediatric Patient Following Ingestion of Delta-8-Tetrahydrocannabinol Gummies. Am J Case Rep 2021;22:e933488. PubMed
- Jo NY, Chu CC, Ramsey BC. Brugada Electrocardiogram Pattern Induced by Recreational Delta-8-Tetrahydrocannabinol (THC): A Case Report. Cureus 2021;13(10):e19058. PubMed
- Leas EC, Harati RM, Satybaldiyeva N, et al. Self-reported adverse events associated with ?(8)-Tetrahydrocannabinol (Delta-8-THC) Use. J Cannabis Res 2023;5(1):15. PubMed
- Simon TA, Simon JH, Heaning EG, Gomez-Caminero A, Marcu JP. Delta-8, a Cannabis-Derived Tetrahydrocannabinol Isomer: Evaluating Case Report Data in the Food and Drug Administration Adverse Event Reporting System (FAERS) Database. Drug Healthc Patient Saf PubMed
- Bradley EK, Hoots BE, Bradley ES, Roehler DR. Unintentional ingestion of putative delta-8 tetrahydrocannabinol by two youth requiring critical care: a case report. J Cannabis Res 2023;5(1):9. PubMed
- Shaker K, Nillas A, Ellison R, et al. Delta-8-Tetrahydrocannabinol Exposure and Confirmation in Four Pediatric Patients. J Med Toxicol 2023;19(2):190-195. PubMed
- Miller CR, Burk BG, Fargason RE, Birur B. Delta-8-THC association with psychosis: A case report with literature review. Front Psychiatry 2023;14:1103123. PubMed
Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
Taking Delta-8-tetrahydrocannabinol (delta-8-thc) and Pilocarpine Together: Common Questions
Is it safe to take Delta-8-tetrahydrocannabinol (delta-8-thc) with Pilocarpine?
Do Delta-8-tetrahydrocannabinol (delta-8-thc) and Pilocarpine have any of the same side effects?
Are Delta-8-tetrahydrocannabinol (delta-8-thc) and Pilocarpine used for the same thing?
Does Pilocarpine interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.