Flea and tick prevention and treatment is the mother lode of consumer spending in the pet medications market, according to findings by market research publisher Packaged Facts. Data published in the company's report "Pet Medications in the US, 4th Edition" reveals that nearly three-quarters (74 per cent) of dog-owning or cat-owning households purchase any type of flea/tick medication or medicated products.The overall number of dog-owning households that purchase flea & tick medications has increased in the four years, while the number of cat-owning purchasers have been decreasing somewhat, stresses Packaged Facts.