What are the side effects of Alisma (泽泻)?

Alisma (Alisma plantago-aquatica) is a commonly used traditional Chinese herb, primarily employed for its diuretic effects, clearing heat, and reducing blood lipid levels. Side effects of Alisma include: 1. Gastrointestinal discomfort: Some individuals may experience digestive system reactions such as nausea, vomiting, abdominal pain, or diarrhea after taking Alisma. 2. Kidney function impairment: Long-term or excessive use of Alisma may burden the kidneys, particularly in patients with pre-existing kidney disease; caution is advised. 3. Electrolyte imbalance: Due to its diuretic effect, Alisma may cause electrolyte disturbances in the body, especially potassium and sodium imbalances, with potassium loss potentially affecting heart function. 4. Allergic reactions: A small number of individuals may be allergic to components of Alisma, experiencing symptoms such as rash or itching. 5. Menstrual disorders: In women, Alisma may affect the menstrual cycle, causing irregular menstruation. 6. Drug interactions: Alisma may interact with other medications; for example, when used with certain antihypertensive drugs, it may enhance diuretic effects.