SI Expires years from now. The medical expires every 6 months. You see, though, the BasicMed seems to indicate that you can leave the SI behind as the SI is for an "unrestricted" license such as a 3rd class, 2nd class, etc. But the BasicMed is a restricted license. Just don't try to get a Third Class ever again. The BasicMed states that all you need is to have the SI once and complete at least one period of a medical exam, then you can apply for BasicMed. So why is it stated so often that BasicMed is not available? I just don't see the regulation that clears that up.
Before I had this incident and reported it, I had not flown for a while. I had intended to start flying again at that time. However, the money and time to maintain the SI has meant I have been unable to fly. At $60,000+ plus so far and at least 10-15 hours a week to maintain the FAA requirements, along with 5 hour drives to be evaluated, and over 70 urine tests without a failure, I'd like to find some way to have the time to actually fly again. Each time I've booked a CFI and plane in last 6 months, I've received a notification for a random urine test. That takes about 2 hours to complete and has to be done between the hours of 10-12:30 or 2:00 to 4:00. To juggle that time, I end up having to cancel the return-to-flying flight.