To evaluate, over 1 year period, the efficacy and safety of newly prescribed levetiracetam as add-on treatment (POS, myoclonoc seizures in JME and PGTCS in IGE) or primary monotherapy (partial onset seizures) in adult and paediatric patients within the approved age limits in routine clinical practice in Czech and Slovak Republics, Hungary, and Romania. Non-interventional study.

Inclusion Criteria:

• diagnoses of partial onset seizures (POS) with or without secondary generalisation or Juvenile Myoclonic Epilepsy (JME) or another IGE with PGTCS
• newly prescribed levetiracetam as add-on treatment (POS, myoclonic seizures in JME and PGTCS in IGE) or monotherapy (partial onset seizures only) in newly diagnosed patients. Newly prescribed means inclusion of the patients in whom a decision has been made to prescribe LEV and the first dose is just to be prescribed.
• age 4 years or above for partial onset seizures, 12 years or above for MS in JME or PGTCS in IGE, 16 years or above for monotherapy
• patient written informed consent

Exclusion Criteria:

• indications other than those defined in inclusion criteria
• history of allergic or anaphylactic reactions to levetiracetam or other pyrrolidone derivatives and excipients included

Primary care clinics and hospitals.