I have been doing daily(microdosing) sub-q injections for several years. 15mg/day keeps me at just over 800. Been reading about TRT since the 90's.My
Sounds like you have old science doctors. My first two specialty TRT clinics sent me multiple use 10ml bottles and said two injections a week. My levels would fluctuate from 800-1200 with twice a week.
Now my personal internal medicine doctor prescribes me 1ml/bottles that I use three times a week with ZERO issues. My levels are 1100-1200 with M-W-F injection schedule.
Just because the vial says "IM only" or "single use" doesnt mean its true. It means it is only approved by the FDA for that.
Here is a good link for you to read up on for the latest subq science.
Testosterone Therapy With Subcutaneous Injections: A Safe, Practical, and Reasonable Option
I read that article when it came out. There have been others in JAMA showing sub-q TRT to be effective as well. That just supports what i started doing years ago.
Never said a vial was for only 1 use. The manufacturer does. That was just info for those that didn't know the safe correct protocol. And can ask for more!
The vast majority of Dr. old school of not still right the scripts for 1 x week.