I am studying about a technology that makes intradermal injection easier. I am lacking some background medical knowledge about this type of injection. I do have some basic knowledge of which skin layer intradermal injection is for, and some of the most used drugs (e.g. TB and allergy testing). However, I want to know some more details about how the injection works.
- what percentage of all the injections are given through intradermal route?
- what are the benefits and limitations of intradermal injection if any?
- I've learned most of the injections are subcutaneous. Why is that?
- What decides by which route the injection should be given?
- Is there any chance medications that were given subcutaneously be given through intradermal route? For example, could we give COVID 19 vaccine or insulin intradermally?
I am currently not working in medical field, instead, I'm in technology field, so I am not very familiar with medical concepts. Please bare with me if the questions were too obvious. I would really appreciate some detailed and clear answers for my confusions. Thanks!