Does Lisinopril Interact With Gingko Biloba?
In our latest question and answer, the pharmacist discusses whether or not there is an interaction between lisinopril and gingko biloba.
Question
Is it safe to take Ginkgo biloba while I'm taking lisinopril? I'm concerned about potential interactions and would like to know if combining these two could affect my blood pressure or cause any side effects.
Answered by Dr. Brian Staiger, PharmD
Medical Content Reviewed By HelloPharmacist
Staff
Last updated Dec 05, 2024
Answer
Hello, and thank you for your question!
There are no known direct interactions between lisinopril and ginkgo biloba, as we detail on our website (Ginkgo - Lisinopril Interaction Details | HelloPharmacist).
However, it's worth noting that ginkgo biloba may have mild blood pressure-lowering effects due to its vasodilating properties. When combined with lisinopril, this could potentially enhance its blood pressure-lowering effect, leading to lower-than-expected blood pressure in some individuals, which could cause some negative effects such as dizziness and drowsiness.
Additional Details
Ginkgo biloba is thought to have wide-ranging effects, one of which is to enhance the production of nitric oxide (NO), a molecule that plays a key role in vasodilation.
Increased levels of nitric oxide cause the relaxation of smooth muscle cells in the walls of blood vessels. This relaxation leads to the widening of the vessels, improving blood flow and potentially lowering blood pressure.
As a result, combining ginkgo with antihypertensive medications like lisinopril could lead to additive effects. This may result in lower-than-intended blood pressure, which could cause symptoms such as:
- Dizziness or lightheadedness
- Fainting spells
- Blurred vision
- Fatigue
It's important to note that while vasodilation is known to lower blood pressure, several clinical studies evaluating ginkgo's effects on blood pressure have shown minimal impact.
For example, one study that assessed ginkgo supplementation in elderly men and women found no significant differences in blood pressure changes between the ginkgo biloba and placebo groups over a median follow-up of 6.1 years. Ginkgo biloba did not affect the rate of new hypertension or the use of antihypertensive medications, regardless of initial hypertension status (Effect of Ginkgo biloba on blood pressure and incidence of hypertension in elderly men and women - PubMed (nih.gov)).
Final Words
Overall, there doesn’t appear to be a direct interaction between lisinopril and ginkgo biloba.
However, based on ginkgo's effects on nitric oxide production, it could theoretically cause mild drops in blood pressure. Due to this, it’s important to monitor your blood pressure closely, especially if you are taking medication like lisinopril.
I hope you found this answer helpful. Please feel free to reach out again if you have any more questions.
Thanks!
References
- The effect of 3-month ingestion of Ginkgo biloba extract on pancreatic beta-cell function in response to glucose loading in normal glucose tolerant individuals, https://pubmed.ncbi.nlm.nih.gov/10868316/
- Ginkgo biloba special extract EGb 761 in generalized anxiety disorder and adjustment disorder with anxious mood: a randomized, double-blind, placebo-controlled trial, https://pubmed.ncbi.nlm.nih.gov/16808927/
- Effect of Ginkgo biloba on blood pressure and incidence of hypertension in elderly men and women, https://pubmed.ncbi.nlm.nih.gov/20168306/
- Dr. Brian Staiger, PharmD
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