Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Report any new or worsening symptoms to your doctor, such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, hyperactive (mentally or physically), more depressed, or have thoughts about suicide or hurting yourself.
Call your doctor at once if you have:
- rapid heart rate, tremors or shaking;
- confusion, extreme fear, thoughts of hurting yourself;
- agitation, hallucinations, fever, overactive reflexes, vomiting, diarrhea, loss of coordination, fainting;
- painful or difficult urination;
- very stiff (rigid) muscles;
- seizure (convulsions), or
- tired feeling, weakness, easy bruising or bleeding (nosebleed, bleeding gums), pale skin, feeling light-headed or short of breath.
Common side effects may include:
- dry mouth, nausea, upset stomach, loss of appetite, constipation;
- feeling anxious, restless, dizzy, drowsy, or tired;
- sleep problems (insomnia);
- appetite or weight changes;
- memory problems, trouble concentrating;
- increased sweating, numbness or tingling;
- vision changes; or
- decreased sex drive, impotence, or difficulty having an orgasm.
This is not a complete list of side effects and others may occur.