How Does Calcium Affect The Efficacy Of Amoxicillin?

Amoxicillin or amoxycillin is an antibiotic that is used to treat bacterial infections caused by susceptible microorganisms. There is nothing wrong with taking this medicine with yogurt. In fact doctors often recommend taking it with water, milk, baby formula, fruit juice, or ginger ale etc. This is only a precaution to dilute the taste of the medicine. And there is no specific relation between calcium and efficacy of Amoxicillin. For details about this medicine see the link below:
www.drugs.com

You are told to take yogurt with it because the medicine kills some of the good bacteria in your stomach and yogurt helps reduce that effect.