Yes - they can. I am so happy to hear that your pet is responding well to the herbal treatments! This is a very good sign.
Not to sell you products - but the Hu-Mana-Tea works very well on animals as well as humans. There is a dosing chart at http://www.humaworm.com
on the tea page. This chart will work with the tea - even if you purchase it elsewhere :)
Herbals work much better than pharmas to cleanse parasites from animals - including the human animal - this is why you are seeing the actual tapeworm segments now.