Feline Hyperthyroidism Kitten Got Into My Older Cats Prescription Medicine?

Kitten got into my older cats prescription medicine? - feline hyperthyroidism

My adult cat is feline hyperthyroidism pills, and I managed to eat a cat, before I stop. It is a thyroid pill.
It takes about 5 weeks.
If nothing bad would happen? No way to fix things?

Note: I can bring him to the vet because there are none, because of Labor Day. No one will be open for the next day, and none of the veterans of the urgency here. Even in neighboring cities. Do not give stupid answers like "oh, make it to a vet." I'm not stupid, I know I should - I can not.