> I mean - you know how there’s pills you only need to take once a week - but they come in sequential packs, to be opened daily? Resulting in one real pull and six placeholder placebos per week?

I haven't seen any pills exactly like this, though I guess some may exist.

The most famous real world example is "the pill", contraceptive hormonal treatment which is usually prescribed as complete cycles with some "dummy" pills which roughly simulate a 28 day "typical" female ovulation cycle. That choice is somewhat arbitrary, some people do perfectly well just taking the "live" pills every day whereupon their body just suppresses ovulation and they don't experience periods. A sympathetic doctor may be able to prescribe this actual treatment (which avoids discarding the "dummy" pills in a pack) if it suits you, so you just get "live" pills to take daily, typically for a year or so at a time. On the other hand, at the far end of the spectrum my mother was unrecognisable, basically completely psychotic on the pill, whereas it turns out she's fine when pregnant (fortunately for me and my sister) or after solving the problem in a more drastic way†. The choice of 28 days is basically because they had to pick something as most people aren't in either of the prior categories, their bodies will tolerate hormonal intervention to a point, and 28 days felt sort of like the natural ovulation cycle.

[None of this is medical advice. Ask your doctor about what you should do, don't interpret something from some HN poster as advice for your own medical treatment]

† My mother had her uterus removed, so, no more pregnancies.