Pharmaceutical glass is glass produced to strict purity and chemical-resistance standards for packaging medicines, shielding the product from moisture, gases, and chemical interaction. It is classified into three types — I, II, and III — by hydrolytic resistance, the measure of how well the glass resists releasing compounds into its contents. Evergreen supplies all three types in capacities from 1ml to 1500ml.

Type I, II, and III pharmaceutical glass differ in hydrolytic resistance — how well the glass resists releasing compounds into its contents. Type I (borosilicate) has the highest resistance and suits injectable and sensitive products; Type II (treated soda-lime) offers high resistance for acidic and neutral aqueous preparations; Type III (regular soda-lime) has moderate resistance for less reactive drugs. Evergreen manufactures all three types.

Amber glass is used for pharmaceutical products because it filters out ultraviolet light that can degrade light-sensitive medications and reduce their efficacy. The color comes from metallic oxides added during production, which absorb the shorter UV wavelengths most responsible for photodegradation. Evergreen offers amber alongside regular flint, high-grade flint, emerald green, and cobalt blue glass.

Pharmaceutical glass packages a wide range of medicines — oral, topical, and injectable — where product stability, purity, and an inert barrier are essential. Common formats include pill bottles, dropper bottles, medicinal syrup bottles, injection vials, ampoules, cartridges and syringes, tubular vials, and glass infusion bottles. Evergreen produces these formats across Type I, II, and III glass.

Pharmaceutical glass containers are available across a broad range of sizes, from small vials of a few milliliters to bottles over a liter, depending on the dosage form and application. Evergreen manufactures pharmaceutical glass in capacities from 1ml to 1500ml, with standard GPI finishes, standard DIN finishes, or custom neck finishes.

Pharmaceutical glass packaging must meet recognized pharmacopoeial and regulatory requirements. In the United States, USP covers hydrolytic resistance and glass classification, while Ph. Eur. 3.2.1 provides corresponding requirements in Europe. Evergreen’s pharmaceutical glass facilities maintain internationally recognized quality and manufacturing certifications, including ISO 9001, ISO 15378, GMP, ISO 14001, and ISO 45001.

Pharmaceutical glass containers use a range of closures, including tamper-evident and child-resistant options, to protect product integrity and meet safety requirements. The right closure depends on the dosage form — droppers for controlled liquid dosing, screw caps for tablet and capsule bottles, and orifice reducers for drop-by-drop dispensing. Evergreen supplies matched closures with both standard and custom neck finishes.

Pharmaceutical glass containers are tested through checks on dimensional accuracy, hydrolytic resistance, thermal shock resistance, and visual defects such as cracks, bubbles, and contamination. These tests confirm each container meets its specified glass type and can protect the product through filling, sterilization, and storage. Evergreen QC engineers are onsite at every production, and our in-house QA laboratories provide offline qualification and testing for all projects.