If you have an emergency and cannot reach me, please go to the nearest emergency room and ask to see a psychiatrist. I try to answer phone calls as promptly as I can, but I also have a policy of not taking phone calls from one patient while I am with another patient, so that sometimes limits my opportunities to get back to you.
The bottom line is that if you don't think the problem can wait for about 24 hours, you should probably go to the nearest emergency room.