Do not give vaccinations and flea and tick meds at the same time. Nor do you give rabies at the same time as a 2 way or 3 way or 4 way. The rabies should be a stand alone. If you have a little pup that just went home and are not taking them to the cottage etc they should not have flea and tick meds till they are of a size. By giving them at the same time with a low body weight you will flood them with toxicity and they may have tremors which is a result of too many toxins in the body. If you have any questions, please send me mail at darlah@potechin.com.
If you have any questions, ask vs relying on the internet.