Recently, I was on-call for the weekend for my call group, (a group of doctor who cover each other's patients). One of the problems that on-call doctor face are patients trying to get medications that should have been cleared by that patient's primary care doctor (PCP) during the week. Please note - If you have prescriptions that you need, please address that before a weekend or holiday. Sadly, some patients attempt to use on-call doctor to fill prescriptions, or take care of an illness that the patients should have used their PCP to take care of during business hours. The on-call doctor has no way of knowing the last time you saw your PCP.
So heads up - take responsibility for your health care, and use your PCP. Also, do not call an on-call doctor in the middle of the night for something that has been going on all day. Doctors are human...we like to sleep too.