DIUREX promptly relieves menstrual bloat, swelling and water weight gain. Gentle, safe, and effective, DIUREX has been the number one OTC diuretic brand for almost 50 years. For prompt relief of periodic water weight gain, bloating, swelling, and fatigue, Diurex offers a variety of solutions; both caffeine and caffeine-free, capsules, caplets, soft gels, and pills. DIUREX Max does not contain supplements. It contains an active ingredient that is recognized as safe and effective by the FDA when used as directed. Overnight weight gain is often just water weight gain. Fit into your clothes every day of the month with DIUREX.