Hello, I have gone through your query and understand your concern. Fertisure M is a supplements in the form of anti oxidants which would help him to increase sperm motility. You should rule out any other cause causing infertility like infection. If there is any sign of infection, he may need broad spectrum antibiotics. Further we cannot surely how long he have to take fertisure M. Because this may works in many and not in some and the effectiveness vary from person and person and also on other factors like age, previous infections, etc. Recommend him to take natural foods to increase the sperm count like garlic, ginseng, pumpkin seeds, walnuts, asparagus, bananas,, dark chocolate, oysters etc. Further if he is a smoker, he should stop smoking and taking alcohol too. My recommendation is to recheck the sperm analysis after 3 months of taking this Fertisure M to know about the status and discuss with your treating physician. Hope this helps. Please write back for further queries. Wishing you good health.