3M Custom Elizabethan Collar (E-Collar)


3M Custom Elizabethan Collars, sometimes referred to as E-collars,  are plastic collars that keep your pet from chewing and biting at stitches and wounds.


E-Collar Basics

The E-collar, or Elizabethan collar, is available over the counter. Therefore, no prescription is required to purchase this product. These collars assist dogs and cats in recovering from a wound or surgical procedure. E-collars provide an end to self-inflicted wound aggravation, help overcome lick-bite and itch-scratch cycles, and combine long-lived toughness with softness. Each collar is clear and lightweight. Collars also include a padded neck and a hook and loop fastener system. Reuse collars as needed. 3M Elizabethan Collars are available in three sizes: #8 for small cats and dogs, #17 for medium dogs, and #23 for large dogs.

E-Collar Directions

Use as directed by your veterinarian. Adjust the collar to your pet so that you can fit two fingers comfortably between the collar and your pet’s neck. Choose the appropriate sized collar based on your pet’s neck size. Collars are sized as follows:

  • #8 collars – width of 3.2” and a neck size of 9.4”
  • #17 collars – width of 6.7” and a neck size of 15.4”
  • #23 collars –  width of 9.1” and a neck size of 21.2”

E-Collar Warnings

Keep out of the reach of children. If your pet’s condition does not improve or worsens, contact your veterinarian. Always check that the e-collar is fitted properly so as to avoid irritation to the neck and face. Ensure that the e-collar is not restricting breathing, eating, or swallowing.  Your pet should be able to eat and drink with a properly fitted collar. Therefore, use a plate for feedings rather than a bowl or cup. Cats cannot groom themselves when wearing a collar, so you should brush your cats daily.  Be aware that pets with e-collars may inadvertently knock things over or get stuck in confined spaces. Make sure to remove valuable or dangerous objects from your pet’s reach.

Please contact us at (877)220-6337 if you have any additional questions regarding this product, sizing, or directions for use. A member of our pharmacy staff will be happy to assist you!

Additional information


Cats & Small Dogs #8 (Up to a 9.4" Neck), Large Dogs #23 (Up to a 21.2" Neck), Medium Dogs #17 (Up to a 15.4" Neck)