Of course there are no effective drugs that are safe. All of them will kill you! The oldest known drugs are pain killers and they have been in use for the last 4000+ years. But these will eventually kill you. Take them and wait. You might have to wait over 100 years, but eventually you will be dead. </sarcasm>
r
-- "Any sufficiently advanced technology is indistinguishable from magic."
Arthur C. Clarke (1917 - ), "Technology and the Future"