Is there any good medicine for bipolarism?

Sure. There are several good medications for bipolar disorder & not one is good for everyone. It is important to balance the benefits & risks taking into account an individual's history, family history, & the medication's side effect profile.
See below. Each person is individual, but usually manic symptoms are managed by mood stabilizers and depressive symptoms are managed by antidepressants. Overall feelings are managed by psychotherapy. The goal of the treatment to have your mood more or less even-keeled.
Bipolarism. There are several Mood stabilizers & Psychotropic medications in current use, the choice varies from one patient to another.
Mood stabilizers. Mood stabilizers are used to treat bipolar disorder. Lithium and depakote would be two examples of mood stabilizers but there are others, depending on symptoms, and depending on what works for the patient.