MediVena ONE-CARE Insulin Pen Needles




Learn about Medivena One Care Pen Needles

The ​​MediVena ONE-CARE Insulin Pen Needles offer extra-thin wall technology for smooth insulin flow with fast and virtually pain-free injection. ONE-CARE Insulin Pen Needles are precisely grounded with a three-bevel tip, electro-polished, and coated with medical grade lubricant to minimize injection force and improve patient comfort to encourage glucose testing and insulin delivery for compliance with diabetes management recommendations. The ergonomic design with ribbed housing ensures a comfortable grip for secure attachment onto the pen injector.

Shipping, Payment, & Returns


bttn offers a variety of shipping options to best fit your orders. All orders over $199 include free shipping. For those under $199, a $3 fee will be added, while those under $99 will have a $6 fee added for shipping. Products weighing over 100lbs will be marked in our system as “freight collect” and someone from our team will reach out to you directly to confirm shipping costs. For more information on our shipping policy, please refer to our shipping policy page.

Payment Options

Payments are accepted via card, check, or PO.

If you are paying by check, please promptly send all checks to 424 2nd Ave W, Suite 700 Seattle, WA 98119.

If paying by PO follow the steps below:
1) Ensure that your Purchase Order correctly reflects the order placed on
2) Download your organization's PO to your computer
3) Open your email application
4) Create a new email with the subject line "Bttn (Order #)" PO
5) Add as the recipient
6) Attach your organization's PO
7) Press Send

Return Policy

30-day return policy.

You can request a return up to 30 days after receiving your item. To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

Contact us for any return questions at


What are pen needles used for?

Pen needles are used with pen injector devices to inject insulin; commonly used by people with diabetes.

Can I buy pen needles over the counter?

Not all states require a doctor’s prescription to purchase insulin pen needles. However, a prescription is needed to get insurance coverage on the purchase.

Are pen needles and syringes the same thing?

Pen needles and syringes are not the same things. Syringes require more care and upkeep than pen needles. But, they also tend to be more affordable than insulin pens. In addition, syringes can mix insulin (or any medication) in a single injection, rather than administering two different injections.

What is the standard insulin needle size?

The standard insulin needle size is ½ an inch long.

How often to change insulin pen needle?

It’s recommended that you change your needle after each injection or at least once a day to uphold standard cleanliness markers.

What size needles do diabetics use?

Most insulin pen needles that diabetics use are between 4 and 12 mm.

How much do insulin pens cost?

  • The price of insulin pens varies on the brand and the type of insulin (rapid-acting, long-acting, short-acting, or mixed).
  • Humalog 50/50 vial (10 mL; 100 iU/mL) – $393.00 per vial
  • Humulin R vial (20 mL; 500 iU/mL) – $1,837.62 per vial
  • Insulin lispro junior KwikPen (3 mL; 100 iU/mL) – $338.16 per carton of 5 pens