PDE5 inhibitor
Sildenafil Citrate and cannabis (marijuana, THC)
As cannabis becomes legal or decriminalised in more jurisdictions, the practical question of combining it with prescription medication comes up regularly. Sildenafil Citrate (Sildenafil Citrate) and cannabis share several pharmacological pathways, and the combination at 100mg, 50mg, 25mg is not automatically benign even where both are legal.
How cannabis affects Sildenafil Citrate
THC and other cannabinoids are metabolised partly by hepatic CYP enzymes, including CYP3A4 — the same pathway used by many PDE5 inhibitor medications. Frequent cannabis use can shift the metabolism of Sildenafil Citrate mildly. THC also has cardiovascular effects (increased heart rate, blood pressure changes) and central nervous system effects that can stack with Sildenafil Citrate's side-effect profile.
Practical guidance
Occasional moderate cannabis use is unlikely to cause clinically meaningful problems for most adults on Sildenafil Citrate at 100mg, 50mg, 25mg. Heavy daily use, edibles with high THC content, or cannabis combined with alcohol substantially raise the risk of dizziness, hypotension, impaired judgement and amplified side effects from Sildenafil Citrate. According to the prescribing information, the full list of recreational substances should be disclosed to the prescriber.
Frequently asked questions
Can I use cannabis while taking Sildenafil Citrate? ▾
For most adults at 100mg, 50mg, 25mg, occasional moderate cannabis is tolerated, but heavy daily use is not advised because of metabolic and additive cardiovascular effects with Sildenafil Citrate. The safe practice is to mention it to the prescriber.
Does CBD interact with Sildenafil Citrate? ▾
CBD inhibits several CYP enzymes including CYP3A4, which can raise plasma levels of medications that go through that pathway. For Sildenafil Citrate specifically, this depends on whether Sildenafil Citrate uses CYP3A4. Daily high-dose CBD products warrant a pharmacist check.
Products containing Sildenafil Citrate
More on Sildenafil Citrate
- With alcoholSildenafil Citrate and alcohol — is it safe to drink?
- With foodShould Sildenafil Citrate be taken with food?
- Side effectsSildenafil Citrate side effects: common, rare and warning signs
- Dosage guideSildenafil Citrate dosage guide: how much to take and when
- OnsetHow fast does Sildenafil Citrate start working?
- DurationHow long does Sildenafil Citrate last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.