Hi, no problem. Is there a reason behind using the Panacur? Do they know if you have P resistant worms, which are very common? If you do then it may as well go down the sink. If you don't then 5-6 weeks is the correct dosing interval for that product but if using Panacur worm counts are essential. We test lots of horses where resistance tests show no effectivity for this old fashioned wormer so beware. No poo picking = not good! Hope that helps.