kapselhætten

Kapselhætten is the cap of a two-piece hard gelatin capsule, a common form for oral pharmaceutical dosage. In Danish terminology, it refers to the upper part of the capsule that fits over the capsule body to enclose the contents. The cap is manufactured separately from the body and is designed to provide a secure, yet removable, closure. Both parts are usually made from gelatin, though many modern capsules use hydroxypropyl methylcellulose (HPMC) or other alternatives to accommodate vegetarians, dietary restrictions, or specific storage needs.

Design and fit: The cap and body share a matching diameter and tolerances so the cap snaps onto the body. The cap may have a slightly larger outer diameter and an interior shoulder that engages the body to form a tight seal. Imprints, color, and size labeling commonly appear on the cap for identification and branding.

Manufacturing: Hard capsules are produced by forming gelatin or HPMC shells in cap and body molds, then separating and filling. The body is filled with powder, pellets, or liquids, then the cap is placed over and secured. The finished capsule is dried and inspected for integrity, weight uniformity, and leakage.

Usage and dissolution: After ingestion, gastric fluids dissolve the shell, releasing the contents. The cap’s dissolution timing is designed to coincide with that of the body to ensure release of the entire dose.

Quality and regulation: Capsular shells must meet pharmacopeial specifications and good manufacturing practice standards. Material safety, traceability, and cleanliness are essential.

See also: Capsule (pharmaceutical).