Return to site

Why Is PVC Used in Blister Packs?

October 28, 2024

PVC (Polyvinyl Chloride) is commonly used in blister packaging for medications, and for good reasons! It’s one of the most popular materials for this type of packaging, offering numerous advantages that make it a top choice for pharmaceutical manufacturers.

PVC is widely used in blister packs due to its excellent formability, clarity, cost-effectiveness, and strong barrier properties, ensuring both the safety and stability of medications.

 

Key Advantages of PVC in Blister Packaging

1. Formability and Clarity

· PVC can be easily shaped through a process called thermoforming, which allows for the creation of custom-fit cavities that securely hold tablets or capsules in place.

· It’s also naturally clear, making it easy for users to see the contents without opening the package, improving both user confidence and adherence.

2. Cost-Effectiveness

· One of the main reasons why PVC is favored in blister packaging is its cost-effectiveness. It’s affordable for manufacturers and keeps production costs lower, which can also be beneficial for consumers.

3. Protective Barrier

· PVC acts as a strong barrier against moisture, oxygen, and other potential contaminants, helping to maintain the stability and effectiveness of medications over time. This barrier helps extend the shelf life of the products, ensuring that the medication stays potent and safe to use.

 

Environmental Considerations

While PVC is highly effective for blister packaging, it comes with some environmental concerns. It’s not easily biodegradable, and improper disposal can lead to pollution. To address these issues, the pharmaceutical industry is exploring more sustainable alternatives like:

· PET (Polyethylene Terephthalate): A recyclable material that can serve as a substitute for PVC in blister packaging.

· Paper-Based Materials: These are more environmentally friendly and offer similar protective qualities as traditional blister packs.