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Primary Package
Primary packaging is the smallest unit of distribution/or use and is defined as the packaging which is in direct contact with the formulation. For example, bottles for syrup, jar for cream, and pouch for powder, syringes, ampoule, flexible bag, etc. The basic aim of primary packaging is to hold, protect, and/or preserve the final product, especially against contamination.
Secondary Package
It holds the primary package and offers additional protection to the product during handling. It also provides detailed information about the product. For example, carton/paper provides additional safety against mechanical and other environmental hazards. Secondary packaging is the outermost covering. The most common secondary covering is carton. The main composition of the carton is cardboard. The secondary package is not in direct contact with the drug. The secondary package may contain associated components such as a dosing dropper and calibrated spoon.
Tertiary Package
Tertiary packaging is one of the three types of covering which is used to protect, the prepared pharmaceuticals during its shipping and storage. In order to easily transport the bulk of secondary packages, they are often combined and grouped and packed in tertiary packages. The main purpose of the tertiary package is the convenient transport of bulk secondary packages. For example, efficient product shipping is enabled by stretch-wrapped pallets containing several cardboard boxes.
