Pet Wellbeing - Smooth BM Gold - Cat Constipation Support - A Natural, Herbal Supplement for Maintenance of Soft, Regular Bowel Movements - 2 oz Liquid Bottle Enables normal, easy elimination through the bowels Supports colon health. Will not cause over-purging or runny stools Non-irritating and safe for long term use 1 bottle is a 4 month supply for most cats You may also be interested in Pet Wellbeing - BM Tone-Up Gold for Cats