what would be the effects if any, of over worming? I spoke to someone today who told me they worm all their dogs fortnightly!!!! I am curious as to what damage or effect s this could have?

A very irritated gut lining I would think Sam but I have no experience of this ...sorry.

A very empty pocket!!!!!!!!! thats if they use a decent wormer (even internet prices) or perhaps they use pet shop stuff which is why they need to do it so often :-)
Chris

No supported facts on that Sam but IMO that's potentially a dangerous practice.

I am loath to use oral or topical chemicals on my dogs just as much as I am against unnecessary meds for our family but that's got to be excessive by anyone's standards and IMO would have some serious repercussions over time (not necessarily a long time at that :( )