I have used this product and love it. Well, I passed it on to our dog. After a short vacation, our dog got KENNEL COUGH, which is an upper respiratory infection. Our vet did the "human" doctor treatment...prescribed antibotics for her. That didn't help the hacking, plus she now was NOT eating much. So, I decided to stop the medicines and gave her 1 teaspoon of MESOSILVER. All I gotta say is WOW!!! within 12 hrs, she was more alert, hungry, and the hacking was at a minimum. Within 24 hrs...it is like she was NEVER sick!! Some may say she was reacting to the drugs...sorry...I believe it was the silver! Stopping the drugs would not have cured the hacking that she had.