Recently having first hand experience with administering meds SQ by both syringe and an epi pen like device. I'm really surprised by the difference in discomfort between the two devices. The syringes have had various sized needles because selling syringes OTC really flusters the pharmacy techs.
The auto injector is what it is. And it su**s! Worse yet, judging by the bleeding and bruising left by the last shot, I'm assuming at least part of the med was given iv. Nothing I could do about it, fortunately it's not a critical drug like epi or insulin so should be no harm except for therapeutically.
I'd just like to hear any feedback others have had with these auto-injectors. The syringes I'm using for abdominal sites, the auto injector recommends the upper leg site, which I've done.