In our hospital, pharmacy thaws and draws up the specified amount of T-VEC into syringes for each individual lesion. This is very helpful during the injection so you do not have to control the amount injected into each lesion.
We have utilized both approaches, by using 1 syringe and changing the safety needle between injections and we have used several prefilled syringes for multiple tumors.Either approach is acceptable, it’s a matter of preference.