Thank you for responding. I am thinking the same thing about having more than one type. Is pyrantel something that can be bought online? I stopped taking all herbs quite some time ago. Do you know if this is something that I can pass on to family members, obviously pinworms are very contagious but no one else has any symptoms at all. I'm concerned about the possible tape and or ascaris? Taking the pyrantel for a week or two wouldn't cause anymore scattering? I'm just afraid of doing something wrong to make this any worse:/