I was reading about lamotrigine (Lamictal), an anticonvulsant, and came across a claim (which has been partially verified) that it can cause myoclonic jerks in some cases. Myoclonus can be treated with various drugs, some of which are anticonvulsants. It would make sense to switch a patient to a different anticonvulsant if myoclonic jerks persist, but if treatment with lamotrigine was continued, a second drug could be prescribed to deal with the jerks (although I don't know if this would be wise).
Are there any non-anticonvulsant drugs that have been approved for use specifically with anticonvulsants - not just lamotrigine - to treat myoclonus arising from the use of said anticonvulsants, or are they incompatible for some reason? I'm aware that most drugs used to treat myoclonus are anticonvulsants, but I don't believe that all are (although do correct me if I'm wrong).