Yes, after I paid $500. for a cat scan that showed colitis (which btw can be caused by Tapeworm I found that out from an infectious disease control specialist) but the Dr I was seeing a non specialist said I DO NOT have a Tapeworm or parasites...SO I did take a speciman into the vet down the street and didn't say it was mine, but they too didn't see any parasites. But I KNOW I have them cause I can feel them!!!! Im thinking that maybe all the herbs are killing most of them I DON"T KNOW! I do know that I can feel them FOR SURE poking in and out of my butt area. I got a handle on the anal wiggling... it was horrible...so I started wiping with alchol ...no problems now in that particular area most of the time. My next step is to try Hulda Clark es 9 herb essence' from San Francisco. Has anyone tried this?