trouble accessing controlled meds

hello -

My husband takes Fluvoxamine Maleate and Mydayis. Every month, he has an issue accessing his new prescription for Mydayis since it's such a controlled substance. For instance, he had to come back early from a family vacation because he could not get a couple of pills ahead of time to take with him. Most of the time, he runs out and then has a gap of a few days where he's scrambling to get that month's prescription and not feeling well in between. Most of it, I believe, is due to his executive functioning challenges in not being able to plan ahead. Does anyone have advice on how he/we may be able to manage his medication better? Thank you!