BD Nano™ 4mm

embecta is committed to helping you inject your insulin correctly.

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A recent study showed that people with diabetes were making at least 1 mistake in how they inject insulin. This can lead to insulin not working the way it should.1,2« With our pen needle technology and helpful resources, embecta is committed to helping you correctly inject your insulin.

Features and Benefits


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


The BD Nano™ 4mm  Pen Needle can significantly help reduce pain during injection compared to larger and longer pen needles.4† The 5-bevel needle tip can bring a more comfortable and less painful injection. 5^


The BD Nano™ 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 easier for you to give the injection and giving you confidence that you have received the full dose of insulin.


BD Nano™ 4mm Pen Needles are compatible with widely used pen injection devices, so even if your regimen changes, you won’t have to change your choice of pen needle.6

Single Use 

Use a new pen needle every time you inject. Pen needles are recommended to be used only once and are no longer sterile after that. There is an association between needle reuse 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. BD Compatibility Confirmation for Pen Needles and Pen Injector Manufacturers. 149-OTH-0004-20, Rev S. February 2021.

Products & Accessories

  • BD Nano™ Ultra-Fine™ Pen Needles 4mm x 32G

    SKU/REF 320122


Products & Accessories

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