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Sodium acetate and water combine when you squeeze the pack so it becomes hot within a matter of seconds.
Conforms to body contours to help relieve pain and reduce swelling
Stays hot for approximately 20 minutes after activation
5.5 x 6.75 inches

McKesson Hot Pack Instant Chemical Activation, General Purpose

Select Options	Small - 5 x 7 inches - Case of 24 Large - 6 x 9 inches - Case of 24 Small - 5 x 7 inches - 1 Pack Large - 6 x 9 inches - 1 Pack Clear

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First Delivery: March 10, 2026 - March 11, 2026

Save 10% now on 1st Autoship*, 5% on repeat orders

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(10% off first Autoship order*)

Price range: $1.87 through $28.28

Sodium acetate and water combine when you squeeze the pack so it becomes hot within a matter of seconds.
Conforms to body contours to help relieve pain and reduce swelling
Stays hot for approximately 20 minutes after activation
5.5 x 6.75 inches

McKesson Instant Hot Compress
Standard Size

How does the McKesson Hot Pack work?
The hot pack activates through instant chemical activation. Simply squeeze the pack to break the inner pouch, and the chemical reaction generates heat instantly.
What is the primary use of this product?
It is designed for general-purpose heat therapy, providing temporary relief from muscle aches, joint pain, or stiffness.
Is the hot pack reusable?
No, the McKesson Hot Pack is a disposable product meant for single use.
Is it safe for sensitive skin?
Yes, the pack is not made with natural rubber latex, reducing the risk of allergic reactions. However, always use a cloth or barrier if you have sensitive skin.
Can it be used for all age groups?
Yes, it is suitable for universal use, but adult supervision is recommended for children or elderly individuals to ensure safe application.

Additional information

Select Options	Small – 5 x 7 inches – Case of 24 , Large – 6 x 9 inches – Case of 24 , Small – 5 x 7 inches – 1 Pack , Large – 6 x 9 inches – 1 Pack