Some diseases are classified as Notifiable Notification Diseases. The diseases that receive this name are those that the law requires that their emergence be communicated to the authorities responsible for public health of the community. That way any outbreak of this disease can be prevented. Sexually Transmitted Diseases that are also Mandatory Notification Diseases are syphilis, chlamydia, gonorrhea, and HIV / AIDS.
that is true because of the potential of the two different drugs interacting badly. Certain drugs should not be taken together, that's why the paper you get with a prescription lists what cannot be taken with that rx.