Those prescription drug discounts - not all they're cracked up to be: Prices for Lipitor, Celebrex and other popular brand-name medicines offered by Medicare's new drug discount cards are no better than those that consumers can find, without discounts, from online pharmacies. The drugs are cheaper still in Canada. Medicare began posting drug prices on its Web site yesterday, allowing people to compare the new Medicare-approved discount drug cards and decide which offer the best prices. Mark McClellan, administrator of the federal Centers for Medicare and Medicaid Services, said consumers can find "significant price reductions off typical retail prices." Democrats said the savings claimed by the administration would be eaten up by drug price increases that far outpace inflation.