You've probably taken it already if you were going to, but clonazepam has a very long half life and its anticonvulsant effects are very pronounced. And though not to the extent of diazepam it is also a fairly effective skeletal muscle relaxant.
As a general rule, always start small with tranquilzers/benzodiazepines in general. And a google search would have yielded a dozen equivalency charts in 0.09 seconds.