Slowest or LEAST EFFECTIVE route to MOST EFFECTIVE route:
Topical (Slowest or least effective)
Ingestion
Intramuscular (IM)
Intraperitoneal
Inhalation (Inhaler or ET tube)
Intravenous (IV)
Some studies show administration of drugs via ET tube is as effective as IV.
IV
IM
Inhalation
Sublingual
Oral
Topical
po, sc, im, iv
injection snorting smoking from quickest to slowest
Yes the oral route for drug administration is the safest route.
biovability of intral nasal route
Topical
Yes, the route of administration can significantly change the amount of drug absorbed and the potency of the drug.
Skin based absorbtion, if it's even possible with that drug, or oral injestion.
buccal
Intravenous is a route of administration where the drug or substance is injected directly into the veins.
No. That is not a good route of administration of drug during the menstruation. The drug will be washed away in normal course. Your doctor is the best judge.
IM means Intramuscular route of drug administration, while IV means Intraveinal route of drug administration. IV route, takes the drug directly into the bloodstream resulting in 100% bioavailability instantly. Where as in IM route, drug is injected into muscle tissues, which holds the drug for a while and gradually releases into the bloodstream through the network bed of capillaries running across or surrounding the muscle tissue. In IM, the bioavailability may be slightly less than 100% of drug due to diffusion from muscle through tissue fluid and into the blood.
There are three pharmacological factors that helps in the understanding of drug experience. The pharmacological factors are the chemical properties of the drug and action on the body, drug dosage, and the route of drug administration.