Monthly premiums for some of the most popular Medicare prescription drug plans in Florida are jumping by at least 20 percent for 2009.Seniors can now start comparing Medicare prescription drug plan choices for 2009 on the Medicare web site: www.medicare.gov. Seniors will be able to sign up for new drug plans starting Nov. 15. Open enrollment in the drug plans ends Dec. 31.

For 2009, Florida seniors will be able to choose from 57 prescription drug plans, compared to 58 plans this year. Monthly premiums for 2009 plans start at $16.70 compared to $12.10 this year. The most expensive premium for 2009 is $111.30 compared to $97.50 this year. Several plans have also increased their annual deductible for 2009.