Hibiscus sabdariffa might lower blood pressure. Taking Hibiscus sabdariffa along with medications that lower blood pressure might cause blood pressure to go too low. Monitor your blood pressure closely. Hibiscus sabdariffa tea might reduce the amount of chloroquine that the body can absorb and use.

This case study points to a possible connection between this patient’s hibiscus tea consumption and DVTs associated with IVF therapy. Whereas there may be a connection between the DVT prevention (via decreased blood pressure and coagulability), there may also be a connection to the ineffective IVF hormone treatment.

April 30, 2025 - Hibiscus tea is a popular drink sometimes known as sour tea. Side effects. Hibiscus may cause blood pressure to drop.

September 26, 2020 - If you take medications for high blood pressure or diabetes, it can cause a significant drop in blood pressure. The plant also contains phytoestrogens (or plant estrogens) that may decrease the effectiveness of birth control medication.

Tea Tree Oil National Center for Complementary and Integrative Health

Abbreviations: AC, anthocyanin; C, control; DASH, Dietary Approaches to Stop Hypertension; DB, double blind; DBP, diastolic blood pressure; FPG, fasting plasma glucose; HCTZ, hydrochlorothiazide; HDL, high-density lipoprotein; HS, hibiscus; I, intervention; LDL, low-density lipoprotein; MeSy, metabolic syndrome; NAFLD, nonalcoholic fatty liver disease; PC, placebo controlled; PP, pulse pressure; RCT, randomized controlled trial; SBP, systolic blood pressure; TC, total cholesterol; TG, triglyceride. In summary, across all outcomes, 6 studies compared effects of hibiscus with those of a placebo,55,57,58,63,65,67 2 studies compared hibiscus with a preventive diet,54,61 5 compared hibiscus with another tea beverage,53,56,59,64,66 and 4 compared hibiscus with a known pharmaceutical medication.51,52,57,60 Participant health conditions were different across the studies.

February 16, 2022 - High blood pressure affects nearly ... stroke, heart failure and kidney disease. In clinical trials, drinking hibiscus tea has been shown to lower blood pressure in humans....

December 9, 2018 - According to the Bastyr Center for Natural Health at the University of Pennsylvania, hibiscus tea may open and expand your blood vessels, which may increase your risk for heart disease.

There was a significant reduction in systolic blood pressure in both groups, but the mean reduction in systolic and diastolic blood pressure was significantly higher in the case group (P = 0.004 and P < 0.001, respectively). Using H. sabdariffa as sour tea two times a day can be effective in managing blood pressure in stage one hypertension along with lifestyle and dietary modification. Key words: Diastolic pressure, Hibiscus sabdariffa, hypertension, systolic pressure

August 19, 2025 - Hibiscus tea has natural blood pressure-lowering effects. While it cannot replace blood pressure medication (antihypertensives), research shows that drinking this tea daily can lower both systolic and diastolic blood pressure.

July 12, 2025 - Hibiscus tea can interact with certain medications, particularly ACE inhibitors and diuretics, potentially enhancing their effects and causing blood pressure to drop dangerously low.

June 11, 2021 - Some early research shows that drinking hibiscus tea for 2-6 weeks decreases blood pressure in people with mildly high blood pressure. Other early research shows that taking a hibiscus extract by mouth for 4 weeks may be as effective as the ...

September 6, 2021 - A study in Nigeria discovered hibiscus ... The most significant finding was that hibiscus tea, unlike its study counterpart, hydrochlorothiazide, did not cause electrolyte imbalance....

November 28, 2021 - Like all herbal remedies, hibiscus tea (Hibiscus sabdariffa) has a number of often potent effects. However, we should know the right situations to use them as it can interfere with certain medications. Hibiscus tea may interfere with some medications by having the same properties, affecting ...

Hibiscus is also rich in various polyphenols, in addition to the anthocyanins, and all of these compounds combined may play a role in protecting our blood vessels from damage caused by excessive blood sugar or blood lipids – often features in diabetes and metabolic syndrome that can lead to cardiovascular disease.(2) Regular consumption of hibiscus tea could help to prevent complications associated with these conditions such as poor peripheral circulation, retinopathy, atherosclerosis, and hypertension.

Their systolic blood pressure went down by 13.2 points, diastolic blood pressure went down by 6.4 points, and mean arterial pressure went down by 8.7 points. This data supports the idea that drinking hibiscus tea in an amount readily incorporated into the diet may play a role in controlling blood pressure, although more research is required.

December 6, 2024 - To date, there is no scientific evidence of hibiscus tea side effects making people drunk and/or causing hallucinations. A common theory for why ‘hibiscus intoxication’ happens is that it’s result of peoples’ blood pressure becoming too low.