My 22 year old son is having loose motion. He has pain at the lower abdomen and release of excess gas. He is already taking Flagyl tablet twice a day for the past 4days. Should he take sporlac also? If so, how many times? Please guide us. Thank you. Shopping street for last update 2019/03/27 flagyl tablet for loose motion restaurant owners. Loose motion flagyl tablet All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice. You should always speak with your doctor before you follow anything that you read on this website. How to use Flagyl. Take this medication by mouth as directed by your doctor. To prevent stomach upset, take this medication with food or a full glass of water or milk. Warning Metronidazole has been shown to cause cancer in mice and rats with long-term use. Talk with the doctor. The doctor has given you Flagyl (metronidazole tablets and capsules) for a certain health problem. Flagyl-400mg tablet manufactured by abbot healthcare contains Metronidazole as an active ingredient. A prescription is required for this drug. and also a tablet called Flagyl 400. It’s really tough times and if not for the intake of water and the timely aid of Flagyl 400 then I would have surely been admitted in the hospital for dehydration. the tablet the loose motion stopped and everything were back to normal. I was really a relieved man as it’s a nightmare especially if you have to visits the toilet 15-20 times a day. Flagyl are just the best for loose motions and since then I keep a ready stock of the tablet just in case I need it anytime. 9 Best Medicines for Loose Motion Dr Krishna July 14, 2016 No Comments Loose motion as well all know by now is a disorder of the stomach or the digestive system that cause frequent ejection of watery feces.