the old standard was twice a yr... those with many animals sometimes do it more... my vet reminded me it is a POSION and why she wont routinely deworm them,... Zoey was dewormed when she came into my life about 3 yr ago ....
Since they are totally indoors and no problem with fleas (even the dog has no fleas), Charlie's never been wormed as he's never had them and Ling was wormed once as a kitten as she was outside - mom was a barn cat.
They are 1 and 2 yrs old now - I don't worm unless I see a problem.
I think most people only deworm if there's actually a problem... I mean that's what I do anyhow... Ollie got dewormed when he came off the streets and once last year when he somehow came across some tapeworm - he's indoor only though and hasn't had a problem since
Yeah, he apparently injested a flea somehow... all I could figure (since he's on frontline and heartgard) is that my friend's dog (unprotected) brought them into the house when she brought her over to show me... not long after the visit she and I came to bad terms (for whatever reason I'm still not sure! She just wont talk to me!) and I never got to gently tell her that her pets might have fleas
Only when needed here. Since both of my cats are rescues, they were dewormed when they came off death row. During their annual exams, they are tested for parasites and such. They are given Revolution every 6-8 weeks and are indoor only. We also treat our home regularly to discourage fleas (beneficial nematodes outside and Borax sprinkled on the carpets then vacummed up inside).