Does Weed Cause ED? What the Research Shows

What the research says about cannabis and ED

The studies disagree, and they measure different things. Start with the design and population before applying a headline number to yourself.

Sources: published abstracts linked in each row. Study estimates are reproduced as published, without recalculation. Accessed Oct 22, 2026.

How to use this table: the pooled prevalence describes the included samples, not all US cannabis users. The claims study counts recorded diagnoses; the survey asks about self-reported ED. Those percentages answer different questions.

Why “linked to ED” is not the same as “causes ED”

An association means cannabis use and ED occurred together in a study; it does not establish that cannabis caused the erection problem. The meta-analysis itself called for longitudinal research and reported substantial differences between studies.

The genetic analysis did not find evidence of causation. The claims study found an association but could not assess dose and used diagnosis codes as proxies for use. Neither result settles what is happening for one person.

Keep the assessment broader than weed: NIDDK lists blood vessel disease, diabetes, hormone problems and anxiety among possible causes. Our erectile dysfunction guide explains what to discuss at a visit.

Heavy versus occasional use: what the studies separate

Most cannabis–ED studies do not split users by how much they use. The 2019 meta-analysis had no frequency or dose comparison and named a dose-response relationship as a question for future research (Pizzol et al.).

• 1–2 joints per week versus more than 2: in men evaluated for sexual dysfunction, the 1–2 joints/week group had significantly higher penile peak systolic velocity on Doppler than both non-users and men using more than 2 joints/week (Barbonetti et al.).
• Daily use: daily use, compared with none, was associated with orgasm difficulties in men, not with a measured erection outcome (Smith et al.).
• Abuse or dependence diagnosis: men with a cannabis abuse/dependence diagnosis had a higher risk of an ED diagnosis, at the short-term follow-up (Davis et al.).

There is no established “safe for erections” frequency in these abstracts. A joints-per-week category is not a measured THC dose, and a dependence diagnosis is not interchangeable with occasional use. Bring your actual pattern to the provider rather than choosing a cutoff from these studies.

Smoking, tobacco and other factors that travel with cannabis

The Pizzol meta-analysis covered men who smoked cannabis (Pizzol et al.). NIDDK lists smoking cigarettes, drinking too much alcohol, using recreational and illicit drugs and not getting enough physical activity among lifestyle behaviors that may contribute to ED.

These habits often overlap. In the andrology cohort, cannabis users reported higher alcohol and tobacco consumption than non-users (Barbonetti et al.). That overlap is one reason a cannabis association is hard to read on its own. If drinking is part of the picture, read ED and alcohol.

Does weed help ED?

Cannabis is not an FDA-approved ED treatment. FDA’s cannabis and CBD overview distinguishes cannabis from approved cannabinoid medicines, such as Epidiolex (cannabidiol) for certain seizure disorders. Those approvals do not cover ED.

More frequent sex does not establish better erections: that is the outcome distinction in Sun and Eisenberg’s survey. If nerves are your concern, read performance anxiety and ED; NIDDK identifies anxiety and stress as possible contributors.

Cannabis and ED pills: what the labels say

The sildenafil label, tadalafil label and apomorphine label do not name cannabis or marijuana. Their silence is not clearance to combine substances: disclose cannabis, CBD, alcohol and your full medicine list before a prescription decision.

Sources: Viagra (sildenafil) label; Cialis (tadalafil) label; APOKYN (apomorphine) label. Full-text label search, accessed Oct 22, 2026.

The CYP3A4 entries above identify interactions listed for those medicines; they do not establish a cannabis interaction. For the contraindicated nitrate combination, see ED pills and nitrates and the sildenafil label and tadalafil label.

What each path includes

You do not have to prove weed caused the problem before asking about ED care. Use these questions to prepare for a visit, not to decide which medicine to take yourself.

Sources: NIDDK causes; NIDDK diagnosis; Viagra (sildenafil) label; Cialis (tadalafil) label; FDA compounding Q&A; Mendoxa ED product information. Accessed Oct 22, 2026.

Compare ED medication options and read can ED be reversed? for questions about underlying causes.

Bring to the online intake: when the problem began; whether it happens with and without cannabis; the products and frequency you use; and your medicines, supplements, tobacco and alcohol use. Ask the provider whether you need an in-person assessment as well.

When to see a provider, and safety checks before ED medication

Book a visit if erection problems keep happening, appeared alongside heavier use, or come with other health changes. NIDDK describes a medical and sexual history, physical exam and selected tests. Be specific about cannabis, tobacco, alcohol and medicines.

• Sildenafil and tadalafil are contraindicated with organic nitrates or riociguat (Viagra (sildenafil) label; Cialis (tadalafil) label).
• An erection lasting more than 4 hours needs immediate medical care (Viagra (sildenafil) label; Cialis (tadalafil) label).
• Stop and seek care for sudden vision loss or sudden decrease or loss of hearing (Viagra (sildenafil) label; Cialis (tadalafil) label).
• Reported common adverse effects include headache and flushing with sildenafil, and headache, indigestion and back pain with tadalafil (Viagra (sildenafil) label; Cialis (tadalafil) label).
• The APOKYN (apomorphine) label contraindicates use with 5HT3 antagonists such as ondansetron and warns about nausea and fainting.

Give the prescriber your full medicine list, including anything you use recreationally. See sildenafil versus tadalafil for how the two standalone options differ.

If ED is the problem you want treated now

Start the Mendoxa online ED visit with the erection problem you want help with and an honest account of cannabis use. Independent licensed providers review suitability and decide whether the compounded tablet is appropriate. Prescription required.

The tablet combines sildenafil, tadalafil and apomorphine; it is not FDA-approved. Ingredient references are the Viagra (sildenafil) label, Cialis (tadalafil) label and APOKYN (apomorphine) label; APOKYN is an injectable Parkinson’s treatment, and its label is not approval of this ED combination.

For the format and ingredient discussion, read about the combination ED tablet. Compare the available quantities and totals in the single Mendoxa table below, then bring your questions to the visit.

Mendoxa ED plans and prices

The Mendoxa ED tablet is a compounded rapid-dissolve tablet with sildenafil (the active ingredient in Viagra), tadalafil (the active ingredient in Cialis) and apomorphine (APOKYN label). It dissolves under the tongue. A licensed clinician decides if it fits you and selects the strength. Compounded medicines are not FDA-approved.

The 3-month total covers three months at the monthly tablet quantity shown.

If prescribed · Cancel anytime · Available in 49 states (not California). Prices from the Mendoxa intake at try.mendoxa.co/f/ed on Oct 22, 2026. The intake always shows the current price.

FAQ

Can smoking weed every day cause erectile dysfunction?

It may be associated with problems, but daily use has not been established as a cause of ED. Smith et al. linked daily use to orgasm difficulties; Davis et al. studied abuse/dependence diagnoses rather than a daily-use threshold. These are different exposures and outcomes.

Does weed help ED or make you last longer?

Cannabis is not an FDA-approved ED treatment (FDA cannabis overview). A survey linked daily use with reaching orgasm both too quickly and too slowly, so it does not establish that weed reliably makes you last longer (Smith et al.).

Can I take Viagra or Cialis if I use weed?

The sildenafil label and tadalafil label do not mention cannabis or marijuana; that does not establish that the combination is safe for you. Both contraindicate nitrates. Disclose your cannabis use and all other substances so the prescriber can review suitability.

Will ED go away if I stop smoking weed?

The reviewed abstracts do not establish whether quitting reverses ED or how long recovery would take. NIDDK lists recreational drug use and cigarette smoking among possible contributors, but other causes still need consideration. Read can ED be reversed? and discuss your pattern at a visit.

Does CBD help erectile dysfunction?

CBD is not an FDA-approved ED treatment. FDA’s cannabidiol (CBD) overview describes approval of Epidiolex (cannabidiol) for certain seizure disorders; that approval does not establish a benefit for erections. Tell your provider about CBD products too.

Can I get ED treatment online if I use cannabis?

You can start a Mendoxa online visit and disclose cannabis use; it is not automatic approval for a prescription. Independent licensed providers assess suitability. Prescription required. The compounded tablet is not FDA-approved; ask whether an approved option or an in-person assessment would better meet your needs.

References

1. DailyMed: VIAGRA (sildenafil citrate) tablet, film coated, label revised 12/2017. Accessed Oct 22, 2026.
2. DailyMed: CIALIS (tadalafil) tablet, film coated, label revised 3/2026. Accessed Oct 22, 2026.
3. DailyMed: APOKYN (apomorphine hydrochloride) injection, label revised 6/2022. Accessed Oct 22, 2026.
4. FDA (Drugs@FDA): VIAGRA (sildenafil) prescribing information, NDA 020895. Accessed Oct 22, 2026.
5. FDA (Drugs@FDA): CIALIS (tadalafil) prescribing information, NDA 021368. Accessed Oct 22, 2026.
6. FDA: Compounding and the FDA, questions and answers. Accessed Oct 22, 2026.
7. Pizzol D, et al. Relationship Between Cannabis Use and Erectile Dysfunction: A Systematic Review and Meta-Analysis. Am J Mens Health, 2019. Accessed Oct 22, 2026.
8. Zhang Y, et al. The impact of cannabis use on erectile dysfunction and sex hormones: a Mendelian randomization analysis. Int J Impot Res, 2024/2025. Accessed Oct 22, 2026.
9. Davis R, et al. Association of cannabis abuse/dependence on risks of erectile dysfunction and testosterone deficiency. J Sex Med, 2025. Accessed Oct 22, 2026.
10. Barbonetti A, et al. Is marijuana a foe of male sexuality? Andrology, 2024. Accessed Oct 22, 2026.
11. Otieno M, et al. Marijuana use and erectile dysfunction in sexual minority men. J Cannabis Res, 2026. Accessed Oct 22, 2026.
12. Smith AM, et al. Cannabis use and sexual health. J Sex Med, 2010. Accessed Oct 22, 2026.
13. Sun AJ, Eisenberg ML. Marijuana use and sexual frequency in the United States. J Sex Med, 2017. Accessed Oct 22, 2026.
14. FDA: Regulation of cannabis and cannabis-derived products, including CBD. Accessed Oct 22, 2026.
15. NIDDK: symptoms and causes of ED. Accessed Oct 22, 2026.
16. NIDDK: diagnosis of ED. Accessed Oct 22, 2026.
17. Mendoxa ED care (product, format, max 1 dose per 24 hours). Accessed Oct 22, 2026.
18. Mendoxa ED intake: plan prices (term_options). Accessed Oct 22, 2026.

Related guides

• Erectile dysfunction treatment
• ED and alcohol
• Performance anxiety and ED
• Can ED be reversed?
• ED medications compared
• ED pills and nitrates
• Sildenafil vs tadalafil
• Sildenafil + tadalafil in one tablet

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Compounded medication prescribed only if a licensed U.S. clinician decides it is appropriate. Not FDA-approved as a finished product. Not available in California. This site is not for emergencies. Call 911 if you need urgent care.