How do drugs taken orally pass on the bloodstream?

Question

And how aren’t pills for example destroyed by our stomach acid?

In: 2

Answer 1

Same way most vitamins, minerals, sugars, and proteins do: through the small intestine. Stomach acid and churning does destroy the physical pill but doesn’t break them down into atoms. If it did, the same would happen to food and we’d starve. The stomach absorbs a little but mostly just makes it into a slurry with most of the the chemical compounds intact but easily accessible so when they pass into the intestines they can be more easily absorbed into the blood or processed by bacteria in our intestines into something we can absorb into the blood.

Anything that isn’t absorbed ends up as poop. Any excess that is absorbed and is filtered out of the blood later ends up as pee.