May be able to help
I used to work in veterinary medicine and we had lots of injectable liquid valium.They looked like big,brown insulin vials.I forget how many ml were in each but it was quite a few as the bottles were pretty good sized.The label said diazapam injection USP,5mg/ml.Does yours say something similar?It should say how many mg per ml on the label somewhere.If not it would lead me to believe the entire bottle is 10 mg,especially if the entire vial is only 2 ml.But there is no way for me to be absolutely sure without seeing the bottle or at least knowing exactly how the entire label reads word for word.If you post the entire wording of the label or can somehow post a picture of the vial(along with the exact wording on the label)I may be able to provide a more definitive answer since I worked with quite a bit of injectable diazapam on a daily basis.By the way,injectable preperations of diazapam are meant for both iv and im/subcutaneous use.
We used this(sometimes in a cocktail mixed with either Acepromazine or Ketamine)for non or minimally invasive procedures such as dental cleanings etc...where you wanted the animal sedated but not completely under anesthesia that required intubation,oxygen,EKG monitoring etc... It burns like hell even when you hit the vein.We usually administered it iv.