I dont want 'INFORMATION_SCHEMA' db

[cristian stoica]

I have installed MySQL 5.x , apache2.2 last php version and phpMyAdmin
I set my root user and password for sql in phpMyAdmin
and I have 3 DBs : "mysql", "test" and "information_schema"
I create a new user(for example COMMA),password (******) and a new db with user name(db name = COMMA) for same user...and I set the permision fos this db (COMMA) with same user (COMMA)
but...when I login with user COMMA & password ***** and I see 2 bd : first db is "COMMA" and second db is "INFORMATION_SCHEMA"

the question is... how can I set the restriction for user COMMA such us this user can see just db with name "COMMA"
I dont want to see db with name "INFORMATION_SCHEMA" for each user.