Handy Herb Tang Gui capsules are recommended to prevent painful periods. Active ingredients in 1 capsule Angelica extract 300 mg. Sadi extract 50 mg. Ginseng extract 30 mg. How to use: 2 capsules a day after meals. Take every day for 1 month (except during menstruation). Volume: 2 capsules. 1. Not recommended for children and pregnant women. 2. Not recommended for women taking birth control pills and hormones. 3. Not recommended for people taking anticoagulants, including warfarin, blood pressure medications, and aspirin. 4. Should not be taken during menstruation. Tags: pharmacy, Thai