"Ampoule" - what is it, definition of the term
A sealed, single‑use glass or plastic vessel with a narrow neck, engineered to hold sterile liquid or powder until opening; it provides a contamination‑free package for precise dosing in pharmaceutical, cosmetic, and laboratory settings.
Detailed information
A sealed glass container, often called a phial, holds a single dose of liquid medication. The vessel is manufactured from borosilicate or soda‑lime glass, providing resistance to thermal shock and chemical interaction. Production involves drawing a tube, cutting it to length, and forming a narrow neck that is subsequently flame‑sealed to create an airtight closure.
The sealing process eliminates the need for a separate cap, preserving sterility until the point of use. Breakage of the neck releases the contents, allowing rapid administration without exposure to contaminants. This design minimizes the risk of microbial ingress and reduces packaging volume compared to multi‑dose bottles.
In medical practice, the single‑dose format is employed for injectable antibiotics, vaccines, and anesthetics. For veterinary applications, especially in the control of ectoparasites such as ticks, bugs, lice, and fleas, the same type of container delivers precise quantities of antiparasitic agents. The sealed environment protects the active ingredients from oxidation and degradation, ensuring efficacy when applied to animals or in topical formulations.
Key considerations for handling include:
- Inspect the vessel for cracks before use; any damage compromises sterility.
- Store in a cool, dry place away from direct sunlight to maintain chemical stability.
- Use a protective device or gauze to break the neck safely, preventing injury from glass shards.
- Dispose of the empty container in a designated sharps or glass waste container, following local regulations.
When selecting a formulation for parasite control, the dosage is calibrated to the species and weight of the host. The single‑dose nature eliminates the need for measuring devices, reducing the likelihood of dosing errors. Moreover, the airtight closure prevents evaporation of volatile compounds, which is critical for maintaining the potency of insecticidal substances.
Overall, the sealed glass vial offers a reliable, contamination‑free delivery system for a wide range of therapeutic and pest‑control agents. Its simplicity, sterility, and precise dosing make it a preferred choice in both human medicine and veterinary parasitology.