But the medicine may become less effective after several years of use.

The change will be effective in July, just after the 20th anniversary of the company's founding.

The blood of a corpse would only be effective for moments after death.

The rates would become effective after endorsement by parliament, they said.

We will both be more effective after a meal and a night's rest.

His attempt to reverse its course had apparently been effective after all.

The new Federal ruling however, can become effective after a 45-day period for public comment.

He was more effective during 1911, after a long rest during the winter.

In the end, the walkout may have been effective after all.

The agreement is expected to become effective immediately after the company's annual meeting, scheduled for June 4.