6 Types of Plastics Used in Pharmaceutical Packaging

Updated on October 18, 2024
A line of pharmaceutical packaging inside of a factory. The medicine bottles are white with caps on them.

Pharmaceutical packaging has evolved over the years thanks to advancements in plastic materials. These materials ensure the safe storage and transportation of medications we rely on. This guide dives into six types of plastics used in pharmaceutical packaging and their unique properties and benefits.

1. Polyethylene (PE): The Versatile Protector

One of the roles of polyethylene in pharmaceuticals is as a material for drug packaging. Lightweight and durable, PE provides a barrier against moisture and contaminants. This makes it ideal for blister packs and bottles.

The pharmaceutical industry benefits from PE’s resistance to chemicals and impact, which keeps medications effective for longer. Additionally, PE’s recyclability aligns with growing environmental concerns, making it a sustainable choice.

2. Polypropylene (PP): The Reliable Guard

Another type of plastic used in pharmaceutical packaging is polypropylene. Polypropylene, or PP, offers durability and heat resistance, making it another staple in pharmaceutical packaging. It’s often used for syringes, pill containers, and caps. PP’s ability to maintain structural integrity under stress keeps medications secure.

Hospitals and pharmacies rely on PP for its clarity and strength. This plastic also has a high melting point, perfect for sterilization processes. With its robust nature, PP ensures patient safety and medication efficacy.

3. Polyvinyl Chloride (PVC): The Durable Shield

Polyvinyl chloride, or PVC, is primarily known for its strength and versatility. It’s widely used for blister packaging and IV bags. PVC’s impermeability to gases and moisture makes it a reliable choice for maintaining medication integrity.

The medical field trusts PVC for its longevity and stability. This plastic can withstand various sterilization methods and remains effective in various environments. While there are concerns about its environmental impact, ongoing innovations aim to make PVC more eco-friendly.

4. Polyethylene Terephthalate (PET): The Clear Contender

The pharmaceutical industry uses polyethylene terephthalate, or PET, for packaging liquids like syrups and oral solutions. PET provides a strong barrier against oxygen, moisture, and other external factors.

The clarity of PET allows for easy identification of contents, reducing the risk of dosing errors. Its recyclability further enhances its appeal, aligning with sustainable practices in the pharmaceutical industry. PET’s robustness ensures that medications remain safe throughout their shelf life.

5. Polycarbonate (PC): The Strong Supporter

Polycarbonate, or PC, is mainly known for its toughness and transparency. It’s used for packaging items that must withstand high impact, such as certain medical devices. PC offers a high degree of protection against physical damage.

PC is also transparent, allowing users and manufacturers to easily inspect products, reducing the risk of errors. While PC is more expensive, its protective qualities justify its use in critical applications.

6. Polyamide (PA): The Resilient Resource

Manufacturers use polyamide, or PA, for packaging applications that require high strength and flexibility. It’s commonly found in multilayer packaging films. PA provides a strong barrier against gases and moisture.

The pharmaceutical industry values PA for its durability and resistance to wear. This plastic protects medications from external factors. PA’s role in pharmaceutical packaging highlights its importance in maintaining medication quality.

Pharmaceutical packaging relies heavily on a variety of plastic materials to ensure the safety and efficacy of medications. Each type of plastic offers unique properties that cater to specific packaging needs. Understanding these materials helps in selecting the best packaging solutions.