Insulin pen without needle and common insulin pen PK

Advantages of needleless insulin injection:

Compared with needle injection, first of all, as there is no needle in the syringe, the whole injection process is painless, safe and simple, which can eliminate the fear of patients towards the syringe to the greatest extent. The biggest advantage of needle-free injection lies in that it enters the subcutaneous tissue of patients in the form of liquid needling and has little influence on the skin tissue, avoiding the hyperplasia and edema on the skin surface caused by needle injection and will not affect the absorption effect of drugs.

Disadvantages of needleless insulin injection:

1) complicated operation procedure of syringe without needle

2) needle free syringes are expensive and consumables expensive

3) no needle syringe injection site is limited

4) needleless syringes may be needleless, but they are invasive and more painful than needles

5) no needle syringe. If the operation is not careful, the injection dose will not be accurate

6) the skin is more prone to redness than needle injection