It is hard to do that. Meds are so controlled by the doctors and the pharmacies.
I take Advair four puffs a day. But I only need two in the morning. So, over time, I've been gaining on it. BP medicine is a bit different. I need it daily or the pressure Zooms. I can do without now or later.
Att 62, my wife takes no daily meds, except for an occasional aspirin.
That's it. Other than aspirin. We have socked away tons of two pill sachets, badaids, antibactrial ointments etc along with battle bandages and other trauma supplies. I don't expect to use them but as a trained paramedic, I may find a need post SHTF.
I may be old, ugly, and hardly charming. But, perhaps folks will keep me around if I'm useful.