Tamper Evident Additive Port Caps


Drug diversion concerns are driving the need to secure and protect a wide range of drug delivery devices.

Prep-Lock™ Tamper Evident Additive Port Cap provides remarkable protection and protocol assurance to the medication ports of compatible IV Bags, including Baxter, B.Braun, Fresenius Kabi, Douglas Medical and more.

The solid tamper-evident closure easily enhances medication safety, increases confidence in the integrity, and guards against tampering or misuse. The simply one-handed installation and considerable contribution to the integrity of IV Medications have made these caps a favorite of pharmacists everywhere. 

Tamper Evident Additive Port Caps

Prep-Lock Tamper Evident Additive Port Caps

For Baxter Viaflex, Intravia, Aviva, and All-In-One E.V.A.

21-00B Full Product View - Reduced
Download Product Information

For B. Braun PAB & B. Braun E3

Download Product Information

For F. Kabi FreeFlex & Douglas Medical EcoFlx

Tamper Evident Additive Port Cap for Fresenius Kabi IV Bags
Download Product Information

For B. Braun Excel

APC B. Braun Excel
Download Product Information

For ICU Medical LifeCare

APC B. Braun Excel
Download Product Information

Strengthen <797> Compliance

Ensure the integrity of your compounds with USP recommended security.

Enhance Drug Security

Provide a physical barrier to the opportunity for misuse and diversion.

Simplicity & Convenience

Simple one-handed installation is a superior solution over sticky foil seals.

Deterrent to Diversion

Serves as an active deterrent to potential drug diversion and misuse.

Industry Leading

Through 50 years of service, IMI has become the standard for guarding Compounded Sterile Preparations.


Tamper evident protocols may help your pharmacy comply with DEA and USP guidelines.


Compounded sterile preparations (CSPs) are at their greatest risk when they leave the custody of your pharmacy. The Prep-Lock Tamper Evident Additive Port Cap greatly reduces the risk of your CSP being compromised either accidentally or intentionally. It ensures that product integrity is maintained from the time it leaves the sterile hood until it is administered by an authorized clinician. Pharmacist also greatly appreciate the additional visual indication of protocol adherence. 



    The Simple, one-handed installation is pharmacists’ preferred method to providing tamper evident protection to IV Bag Preparations. The enclosed hinge and hidden lock design ensures that once the Cap is applied to the medication port, it cannot be removed without damaging the bag. Help ensure that your preparations arrive to patients without compromise.

    "This is honestly the best cap we have ever purchased."

    Anne Marie Davis

    Operations Manager at Medi-Fare Drug

    “I find their product to be the best on the market in terms of the device itself, the functionality and the securement.”

    Neil Colby, RPh

    Director of Infusion Pharmacy Services for CDRx Infusion

    Evaluation Samples Available

    If you have questions regarding what a partnership with IMI could do for your organization, or you would like more information on a product, pricing, or requesting free samples please fill out the form below. One of our specialists will get back to you as soon as possible (usually within one business day).

    Trends in Ensuring Safety for Home Infusion: The Case for Tamper-Evident Products

    To ensure safety throughout the supply chain and in the patient’s home, providers are adopting tamper-evident products for intravenous home infusion.

    To better understand the steps home infusion providers are taking to ensure safety, Becker’s Hospital Review recently spoke with Neil Colby, RPh, an infusion pharmacist and Director of Infusion Pharmacy Services for CDRx Infusion

    read more

    Ensuring Medication Safety with Tamper Evident Products

    The Substance Abuse and Mental Health Services Administration and American Nurses Association estimate that 10% of health care workers experience substance abuse, given the access to medications in health care institutions. One report estimates that, in 2019, 148 million medication doses were diverted by health care employees.

    read more

    You May Also Be Interested In

    IMI remains at the forefront of developing new products specifically designed for the compounding industry. Our strategic partnerships with some of the biggest names in health care enable us to continusoulsy deliver the kind of high quality and high-value products that pharmacy operations demand. All IMI products are manufactured in the United States under the strictest quality standards at our FDA-registered, ISO 13485–certified facility. Browse our Comprehensive product families below, and as always our premium products are back with premium service. If you have any questions, contact us, we’re here to help!