First, if it's a pill, it has to dissolve in the body. Absorption through the stomach is slowed down by the mucus lining of the stomach and whatever else is already in there.
A lot of drug absorption takes place in the small intestine. Some pills are coated with a substance that stops them dissolving until they reach the small intestine. But they won't get there until the stomach pushes them into it, and the stomach leaves whatever arrives in it lying around for a while.
Im pretty sure that it is not possible to smoke Oxycontin, so i assume it would stay in your system longer orally.
Most take medications at home and do not have the training nor the equipment to do so. Only drugs designed and intended for administration via a parenteral route should be taken that way. If drugs designed to be taken orally are administered parenterally the "user" could be harmed, and the medication may work very differently than intended. In addition, most drugs are tested as orally administered medications. The way they are absorbed, how they are metabolized, and the dose and time to effect are all designed for oral administration.
Orally.
There is no logic behind mixing to drugs. You can take them together. Penicillin will be absorbed in the stomach and diclofenac is usually enteric coated. Diclofenac will be released in the small intestine and absorbed from there.
you can take them orally
[Because it gets in your system faster than having to take a pill and wait for the pill to dissolve.] Although this is probably also true, I think the main reason is that insulin is a protein molecule, which mean if you took it in pill-form your digestive system would break it down before it had a chance to be absorbed and get to work.
The doctor requested that the patient take the medication orally with a glass of water.
Carrots.
Swallow with fluid.
Procaine penicillin is designed to delay the absorption of drug. So that effective level persists for twenty four hours. It should not be taken orally. You can take benzyl penicillin or crystalline penicillin orally, which again is destroyed by gastric juice and partially absorbed.
orally with food
No. You take it orally.