It is usually not recommended to take medicine with iced tea, no matter what kind of tea black tea, green tea, flower tea is not recommended to take medicine, because some certain effective components of the drug and tea in the tea polyphenols, will cause secondary failure of the drug. For example, anti-inflammatory drugs cephalosporin, ofloxacin or penicillin family roxithromycin and azithromycin, in the obvious role of tea polyphenols, will lose pharmacokinetics and reduce the pharmacokinetics, with iced black tea to take antibiotics is not allowed. In other iron and blood tonic drugs, such drugs and tea tannins fuse with each other to react, resulting in secondary failure of iron tonic drugs, for example, red source of drugs such as tea is strictly not allowed. Anti-viral drugs such as ribavirin, ganciclovir, acyclovir and other drugs can be taken with tea, but it is best to interval more than 10-15 minutes to avoid stimulating the gastrointestinal tract.