There are no reports of adverse reactions to long-term use of Mazolin Tablets, but long-term use of the drug should still be directed by a doctor. The main ingredient is horse chestnut seed extract, which is an imported drug. Adverse effects of this product are indicated as “slight gastrointestinal discomfort”, and there are a small number of cases of fever with clinical use of the drug. Contraindications for this product are not clear, gastric ulcer patients need to use the drug with caution. Mai Zhi Ling tablets can be used for various causes of deep vein thrombosis, chronic venous insufficiency, thrombophlebitis, post varicose vein syndrome, various causes of venous edema, soft tissue swelling, hemorrhoidal varicose veins resulting in acute attacks of hemorrhoids symptoms. The instructions point out that this product is suitable for long-term use, but should still be standardized under the guidance of a doctor, follow the doctor’s instructions and timely review, so as not to delay the condition.