The rate reductions would not be fully effective until 2007.

It takes forty minutes or so for them to become fully effective, but you can start to see better after five.

Remember that medications usually take four to eight weeks to become fully effective.

It can take up to several weeks or longer before a medicine becomes fully effective.

The shot has few side effects, but takes two weeks before it is fully effective.

However, they may take up to six months to be fully effective.

It may take up to 2 weeks to be fully effective.

To be fully effective, the station needs three times that number, he said.

It may take several weeks to 6 months to be fully effective.

"They're a long way from being a fully effective force."