A few months ago I was reading online about treatments for horses.
e.g. fenbendazole "Power-pack" - one treatment per day for 5 consecutive days. Dose: 10 mg per kg body weight.
I'm in Australia. In the U.S. you can buy Safeguard paste in a tube. Not avail. here in Aust.
The e-book you linked to, says that ascarids require fenbendazole followed up with ivermectin or moxidectin (no dose given for ivermectin or moxidectin).
I haven't tried any of these drugs, yet.
Anyone tried any of these drugs, with success, against ascaris?