ampul

An ampoule, or ampule, is a small, hermetically sealed glass container that holds a sterile pharmaceutical solution or dry substance intended for reconstitution. Ampoules are designed for single-use administration, most often by injection, and are sealed to keep contents sterile until opened.

Ampoules are slender vessels with a narrowed neck that is fused shut at manufacture. To use, the neck is snapped or cut off at a scored point, typically with sterile technique and protective equipment. The contents are then withdrawn with a sterile syringe.

They may contain clear liquids, or dry powders, which must be reconstituted with a suitable diluent before administration. Their single-dose design helps maintain sterility and avoids vial stopper interactions. They are widely used for injectable drugs, vaccines, and some ophthalmic or intrathecal preparations.

Before use, inspect the ampoule for cracks, cloudiness, or discoloration. Do not use if damaged. After opening, use immediately if the product is not intended for multiple-dose use. Discard any residue; do not save for later doses. Use aseptic technique to avoid contamination.

Ampoules are usually made of glass and protect contents from air and moisture. Store according to the product’s label, typically away from light and at controlled temperatures. After use, dispose of the broken ampoule in a sharps container to prevent injury; never reuse. The term ampoule derives from the French ampoule, from Latin ampulla, meaning bottle or flask.