Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Z &dis a combination of microelements and vitamins. It doesn t have any side effects only substitutes the minerals lost. I don t prefere pro wel due to significant side effects of muscle stiffnes and contractions. Taxim is cefixime, I personally dont prefere it in gastroenteritis. Hope I have answered your query. Let me know if I can assist you further.