Colleague coverage for same medical group its customary to refill with no dose changes, for 30 days. However, there are times you simply refill until they get back from vacation with a message sent to the colleague to further address upon return. On occasion I've done a 90 script for the stable patient on SSRI with the annoying pharmacy by mail companies.
A patient after hospital discharge who doesn't have follow up in 30 days is a discharge planning failure. I don't cover further prescriptions past the original discharge prescription. That runs the risk of establishing a doctor patient relationship. The patient should have had a walk in appointment outlined, or even a Family Medicine appointment schedule to bridge their prescription needs. The risk of what can, and does happen is why go the follow up when all you have to do is call in, or have your CM call in to get you another Rx?
After hours do a 1-2 to day Rx if you must, get the patient in to further evaluate and then more aptly document/justify the Rx and risk benefits. Or you simply say this can wait for the urgent appointment tomorrow, the next day, etc. After hours Rx run the risk of being a new permanent Rx. One way to head this off is pre-document with the patient the possibility to call in for Rx ABC, then if they need to you've already done your documenting leg work in advance.
What was a stable patient calls in midway thru their follow up duration, schedule is packed, don't know when you'll fit them in, best try. Need to get them in to appropriately document and evaluate and justify that Rx. Otherwise bad outcome XYZ happens, "I was never informed of these side effects!" "Dr, why did you give X when patient was later determined to have Y? Why didn't you assess your patient?"
Prescribing for family or friend. Some states forbid it and is a fast to get medical board sanction. Another common pitfall to this is not maintaining a chart for your spouse, friend, child, etc. Medical boards do sanction for failure to appropriately document and maintain a chart. So much easier just to say no across the board for family and friends.