Not all OTC wormers are created equal.
The type of wormer that you use should depend on the type of worm.
Round worms (also pin worms) are visible to the naked eye, are off white in color, have a slightly larger and flattened head and appear curly - like a pigs tail.
Any wormer containing piperazine salts
as it's active ingredient will work on a number of the most commonly occuring intestional parasites found in cats and dogs. I have had success treating worms in cats with Earlyworm by St. John - usually found at Petsmart for between $4 to $8.
Some intestinal parasites require prescription medications as they do not respond to piperazine salts, i.e. Flat worms and tape worms.
I strongly suggest AVOIDING
(damn the lawyers full speed ahead
). I can't stress how strongly I dislike Hartz
. Some deaths have been reported with some OTC wormers, Hartz
in particular, and I have had some ER experience with wormer OD's. Some studies have suggested that Hartz
wormer does not contain a consistent percentage in the level of it's active ingredients.
I suggest that you buy your wormer of choice at Petsmart.
My experience with Petsmart
suggests that someone somewhere in the corporation really cares about the quality of the product lines carried buy the stores.
I hate to take up a position contradictory to Anne's since it's her site
, but worms can cause health problems such as intestinal blockages, weightloss, and lethargy. Cats can suffer from the complications caused by a depressed immune system that follow long term infestation (90 + days). A cat that would normally shrug off some lurking bacteria:evilalien: may become much more susceptible when infested with internal parasites. Healthy adult cats resist parasites and suffer less than very young cats, very old cats and cats who's immune systems are already weakened due to disease and/or stress.
Anyway...key word Piperazine Salts
....follow dosing instructions with care.