I've noticed lately that my horse is a little bit ribby, tail rubbing, and his belly seems kind of swollen.. time to deworm! He always seemed to be a little ribby after deworming though, so I asked his previous owner what he did when it came time (He owned him for 9 years).
He told me that he gave him two tubes of paste dewormer, and then another 1 and a half 2 weeks later.. I am a little bit nervous about this because I really don't want to make my horse sick. He said that he double dosed it because the horse kept most of it on his tongue and would spit it out. Also, I went out and bought two tubes of Equimax dewormer, which is 1.87% ivermectin and 14.03% praziquantel.. I'm not too sure if it would be safe to double dose. Ps, my horse is in the 1100-1200 range.