Our customer asked:
We have an 11 year-old Shihtzu male. We have de-wormed him regularly using Drontal tablets. These have become increasingly difficult and now impossible to administer - he is wise to all our tricks! We wondered if a liquid would be easier - a syringe with extension tube delivering to the back of the mouth should work. There are a number of liquid de-wormers offered. Can you recommend the best one. We would like to cover both tape and round worms. Your advice would be much appreciated.
The best liquid wormer in my opinion is Panacur. It comes in liquid or paste formulations and is extremely safe and effective. The only draw-back is that it's potency against one type of tapeworm is poor. However these are rare unless there are lots of fleas around (the main intermediate host for this tapeworm).
I would go for Panacur paste personally. It is also very mild on the dog itself, which is an advantage for puppies or older dogs.