Get emergency medical help if you have signs of an allergic reaction to Keppra (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning in your eyes, skin pain, red or purple skin rash that spreads and causes blistering and peeling).
Report any new or worsening symptoms to your doctor, such as: mood or behavior changes, depression, anxiety, panic attacks, trouble sleeping, or if you feel agitated, hostile, irritable, hyperactive (mentally or physically), or have thoughts about suicide or hurting yourself.
Call your doctor at once if you have:
unusual changes in mood or behavior (unusual risk-taking behavior, being irritable or talkative);
confusion, hallucinations, extreme drowsiness, feeling very weak or tired;
loss of balance or coordination, problems with walking or movement;
a skin rash, no matter how mild;
easy bruising, unusual bleeding; or
fever, chills, weakness, or other signs of infection.
Common Keppra side effects may include:
dizziness, drowsiness, tiredness, weakness;
feeling aggressive or irritable;
loss of appetite;
stuffy nose; or
infection.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Keppra side effects (more detail)
