hi is this for you or a family member if this is for diabetes then why have you not been shown how to do this and how much to administer you find that the dose needs to be inline with the blood sugar result from there daily test its something your have been show how to do by either a doctor or nurse. it would be best if you seek help that way. do hope this helps. good luck
how to give insulin injection and how do you determine how much insulin to give.