Hi, I had gone through your question and understand your concerns. Most of loose stools are due to viral infections which require proper care of hydration by breast feeding , weaning foods and ORS if large stools , in addition zinc and probiotics can be given . Powergyl is a combination antibiotics which is not recommended with out a prescription , moreover it is usually not required . Teething as such does not cause diarrhea but chances of infections are more leading to diarrhea but infection does not always mean use of antibiotics.Most diarrhea are self limited , all that is required is taking care of hydration. Warning sign when you need to be more concerned are baby dull or irritable, poor oral acceptance, decrease urine as compared to normally, high fever, blood in stools, very large stools , very freq stools . Hope this answers your question. If you have additional questions then please do not hesitate in writing to us. Take care. •     DISCLAIMER: - All the information provided here is for information purpose only , it is not a substitute for the advice of a physician after physical examination , it is not intended to replace your relationship with your doctor. This information in no way establishes a doctor-patient relationship. Before acting anything based on this information do consult your doctor. I recommend that online users seek the advice of a physician who can perform an in-person physical examination