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Hi Sir, I am using lilly insulin pen with humalog mix 25/75 cartridge. My question is which mm needle is suitable 4 mm, 5 mm or 6 mm? Currently I am using novo 6 mm needle. Can I use 4 mm needle? Should I pinch the skin while using 4 mm needle or should I directly inject the insulin without pinching the skin?

1 Doctor Answered
All the needle length you mentioned are ok. Smaller needles are associated with less pain. With 4 mm needle you need not have to make skin fold.
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