Hi Yes,you can take the drug regularly. Providac is a probiotic drug. Probiotics are supplements containing bacteria such as lactobacilli and bifidobacterium. These bacteria are normally present in the gut and produce lactic acid and chemicals like bacteriocin which prevents the growth of harmful bacteria in the body which can cause diarrhoea and other infections. Use of many antibiotics can kill the good bacteria in the gut leading to infections by harmful bacteria .Probiotics increase healthy bacteria in the body.Many food contains probiotics like curd which can also be daily included in diet. Hope I have answered your query. Let me know if I can assist you further. Regards Dr.Saranya Ramadoss, General and Family Physician