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In medicine, instillation (Latin instillare : instill, from stilla : drop) refers to the administration ( application ) of liquid drugs (e.g. solutions , emulsions or suspensions of antibiotics , cytostatics , analgesics , local anesthetics, etc.) in the Organism (hollow organs, body cavities and openings, joints, conjunctival sac) for therapeutic , diagnostic or preventive purposes.

In contrast to infusion , in which the drugs are distributed throughout the organism through the circulation ( systemic therapy ), the drug remains at the point of application during instillation and has a local effect there .

See also