ABSTRACT
The most difficult part of completing a package is closing the container after
filling. The design and application of closures to a container is always difficult.
These packaging components represent some of the most sophisticated pieces of
design and engineering found throughout packaging. The closure must be able to
serve many masters, by providing a secure seal, and in many instances child
resistance, tamper evidence, and consumer communication. This chapter will
discuss the many common closures used in pharmaceutical packaging.
