QUEST Plus delays reappearance of strongyle eggs for 84 days, QUEST Plus kills small strongyles in the encysted state with a single dose. This very palatable dewormer is the only single dose, long-acting treatment and control of encysted small strongyle larvae, roundworms, seasonal parasites and bots, including tapeworms Quest Plus Gel combines 2% moxidectin and 12.5% praziquantel for the treatment and control of large and small strongyles, encysted cyathostomes, ascarids, pinworms, hairworms, large mouth stomach worms, stomach bots and tapeworms. Each Quest Plus Gel sure-dial syringe is calibrated in 50 lb. increments, and treats up to 1250 lbs. body weight. Testing has not been done in breeding mares or stallions. Quest Plus Gel may be used in horses and ponies 6 months of age and older.