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.

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.

October 17, 2025 - 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.

July 24, 2025 - To experience the benefits of hibiscus safely, moderation is essential: – Beneficial Amount: Consuming 1 to 2 cups (around 240-480 ml) of the tea per day is generally considered beneficial and has been associated with improved health outcomes. – Maximum Amount: It’s usually recommended to limit consumption to 3 cups per day, as higher amounts could lead to negative side effects, particularly concerning blood pressure and potential interactions with medications.

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

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....

Tea Tree Oil National Center for Complementary and Integrative Health

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 ...

Here are a few popular teas with potentially risky interactions: Why people drink it: Thought to support memory and cognition. Medication risk: May slow blood clotting and increase bleeding risk, especially if you’re taking blood thinners like warfarin, aspirin or NSAIDs.

March 21, 2025 - Hibiscus tea is often praised for its potential to lower blood pressure. However, this effect can be problematic for individuals who already have low blood pressure or are taking antihypertensive medications.

October 2, 2020 - Hibiscus tea boasts antihypertensive properties that may lower blood pressure. If you have a condition or already suffer from low blood pressure, drinking hibiscus tea may cause complications.

May 1, 2023 - Researchers found that both human and animal trials have shown that hibiscus has a positive effect on both systolic (the top or first number) and diastolic (the bottom or second number) blood pressure readings.

October 19, 2025 - Known for centuries through trade ... benefits: Hibiscus and blood pressure go hand in hand, its tea is a safe and natural option for those with high blood pressure....

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.

December 29, 2022 - Consuming large amounts could potentially contribute to bleeding issues, so individuals on blood-thinning medications or with bleeding disorders should consult with a healthcare professional before incorporating it into their diet.

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.