I was buying the Adequan on Drs. Foster and Smith and giving them myself. It's pretty easy. I had the vet show me how to do it the first time. My vet now sells it to me at cost so I buy it from her now and if she's at my house for an appointment anyway she'll just give it to him (I'm so lucky).
I should add that originally I was doing the shots intramuscularly - as they are intended. But, if you do them in the rear leg you do have to be mindful of the nerve back there. My current vet said that she found Adequan to work just as well subcutaneously and gave me smaller needles (Mikko is very sensitive with shots) and it seems to be working fine.
ADCH Mikko (USDAA) SCH-B; (NADAC) EAC, EJC, TN-E, TG-E, VerO; (AKC) NAJ, CGC; (NACSW) NW1 - 8 year old GSD