Molded Antibiotic Vials

Where tubular vials are converted from tubing, molded vials are formed directly from a gob of molten glass, giving a thicker, sturdier wall and a heavier, more stable base. That robustness suits antibiotic and lyophilized products that are reconstituted at the bedside, where vials are shaken, inverted and pierced repeatedly.

The heavier construction also scales well to larger volumes. Molded vials cover the sizes where tubular vials become impractical, while keeping the Type I or Type II glass that injectable products require.

The classic use is dry antibiotic powder for reconstitution, but the same vials carry lyophilized injectables, larger-volume parenterals, veterinary injectables, diagnostic and reagent kits, and bulk vaccine presentations. Hospital and compounding pharmacies favor the format for products mixed and drawn at the point of care. Sizes from 2 to 20 ml cover most single-dose powders; 30 to 100 ml serves multi-dose veterinary and larger reconstitution volumes.

Each vial has a thick, even wall, a heavy push-up base and a 20, 28 or 32 mm antibiotic crimp finish sized for a rubber stopper and aluminum seal. Type I borosilicate is specified for the most sensitive formulations; Type II is soda-lime glass with a treated inner surface that raises its hydrolytic resistance, and it suits many powders and standard solutions. Clear glass allows inspection of the contents, while amber protects light-sensitive actives.

Powder-fill and lyophilized vials are stoppered and crimped to protect the product until reconstitution, and the drug manufacturer qualifies the glass, stopper and seal together as one container-closure system. The stable base and thick wall help vials run on powder fillers and survive capping and transport. Share your stopper type and fill process with us and we’ll recommend a finish and supply drawings and samples for line trials.

We press-and-blow mold the vials from individual gobs of pharmaceutical glass, then anneal and inspect them for dimensions, cosmetic defects and glass type. Type II vials receive their internal surface treatment during production. Certificates of analysis and compliance documentation are available on request. We can supply amber glass, printed identification bands and washed, ready-to-use vials, and we match stoppers and flip-off seals to the finish when you need a complete set.