Amber Tubular Oral Liquid Bottles

Tubular bottles are converted from drawn glass tubing rather than blown in a mold, which gives them a thin, very uniform wall, a clean finish and tight piece-to-piece consistency. That makes them a natural fit for smaller oral-liquid packs that need to fill, cap and label at speed.

Amber is the working color for liquid medicines. It filters the short-wavelength light that degrades many actives and flavors, and pharmacopeias set light-transmission limits for amber containers. We can supply transmission data for the model you choose, so your stability file can reference it directly.

Typical fills include oral syrups and suspensions, pediatric liquids, cough and cold preparations, tonics and elixirs, oral drops, and herbal, OTC and nutraceutical liquids. The format works for branded retail packs, where a printed label and a child-resistant cap are the norm, and for dispensary use, where pharmacists reconstitute or decant into a standard size. The 5–30 ml sizes suit drops and concentrated doses; 60–200 ml covers most syrup and suspension packs.

Each bottle has a flat, stable base, a straight cylindrical body, rounded shoulders and a short threaded neck in 18, 20, 24 or 28 mm. Type I borosilicate is the usual choice for sensitive, high-pH or reactive formulations; Type III soda-lime covers many stable oral liquids at a lower unit cost. The neck takes child-resistant, tamper-evident or dropper closures, with PE or PTFE-faced liners selected to suit the formulation.

The uniform wall and consistent neck geometry help bottles run smoothly through automatic filling and capping, with predictable application torque. Match the liner to the product: alcohol-based, flavor-rich or essential-oil syrups often need a PTFE face to prevent absorption or swelling. Dropper versions suit oral drops dosed by the drop or by a graduated pipette. Send us your formulation, fill volume and closure preference and we’ll propose a matched bottle-and-cap set with drawings and samples.

We form the bottles from amber borosilicate or soda-lime tubing on rotary converting machines that shape the base and finish, then anneal and inspect each lot for dimensions and cosmetic defects. Certificates of analysis and glass-type compliance documentation are available on request. Bottles can be labeled, screen printed or marked with graduations, and we pack them in trays or partition cartons with closures matched by lot.