I have to administer oral meds and I am using a 60 cc dosing syringe. After about a week, the syringe "locks up" on me and I can barely move it in either direction. I have tried lubricating it with cooking oil...no go. Anyone got any suggestions? Is there a syringe out there better than what I am using now. Can't top dress his feed either ..Prince charming is picky about what he eats and will walk away.