BD Pen Needles and syringes are used to inject insulin. Always consult your Healthcare Professional regarding treatment of your Diabetes. Always follow the directions for use.

BD Ultra-Fine™ 4mm Pen Needles

BD pen needles are used to inject insulin. Always consult your healthcare professional regarding treatment of your diabetes. Always follow the directions for use.

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A recent study showed people with diabetes were making at least one mistake when injecting their insulin.1,2« With our pen needle technology and helpful resources, embecta is committed to supporting people who are reliant on insulin injections.

Features and Benefits


The BD Ultra-Fine™ 4mm Pen Needle helps to reduce the risk of injecting into your muscle compared to pen needles 6mm and longer.3*


The BD Ultra-Fine™ 4mm Pen Needle with its 5-bevel needle tip may help reduce pain during injection, providing a more comfortable injection compared to longer pen needles. 4†5^


The BD Ultra-Fine™ 4mm Pen Needle has ultra-thin wall technology to increase the flow of insulin so less thumb pressure is needed to push the pen button - making it suitable for people with limited hand strength and dexterity.


BD Ultra-Fine™ 4mm Pen Needles are compatible with widely-used pen injection devices.7

Single Use

Use a new pen needle every time you inject. Pen needles are intended to be single-use only and should only be used once to ensure sterility. There is an association between re-using needles and injection pain or bleeding.1

«Results from a patient survey.
*Results from a clinical study assessing IM risk.
†Results from clinical study assessing patient preferences and feedback.
^Results from a clinical study assessing patient feedback.
¥Patients were unblinded to the pen needle they were using


1.    Frid AH, et al. New Insulin Delivery Recommendations. Mayo Clinic Proceedings. 2016;91(9):1231–1255
2.    Bari B, Corbeil MA, Farooqui H, et al. Insulin injection practices in a population of Canadians with diabetes: an observational study. Diabetes Ther. 2020;11(11):2595- 2609.
3.    Gibney MA, Arce CH, Byron KJ, Hirsch LJ. Skin and subcutaneous adipose layer thickness in adults with diabetes at sites used for insulin injections: implications for needle length recommendations. Curr Med Res Opin. 2010;26(6):1519-1530
4.    Hirsch LJ, Gibney MA, Albanese J, et al. Comparative glycemic control, safety, and patient ratings for a new 4 mm x 32G insulin pen needle in adults with diabetes. Curr Med Res Opin. 2010;26(6):1531-1541.
5. Hirsch L, Gibney M, Berube J, Manocchio J. Impact of a modified needle tip geometry on penetration force as well as acceptability, preference, and perceived pain in subjects with diabetes. J Diabetes Sci Technol. 2012;6(2):328-335
6.    Aronson R, Gibney MA, Oza K, et al. Insulin pen needles: effects of extra-thin wall needle technology on preference, confidence, and other patient ratings. Clin Ther. 2013;35(7):923-933.
7.    BD Compatibility Confirmation for Pen Needles and Pen Injector Manufacturers. 149-OTH-0004-20, Rev S. February 2021.

embecta, formerly part of BD. BD is the manufacturer of the advertised products.