Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
severe or ongoing vomiting or diarrhea, loss of appetite, weight loss;
bloody or tarry stools, cough with bloody mucus or vomit that looks like coffee grounds;
a light-headed feeling, like you might pass out;
tremors (uncontrolled shaking), restless muscle movements in your eyes, tongue, jaw, or neck;
seizure (convulsions);
painful or difficult urination;
severe skin redness, itching, or irritation; or
dehydration symptoms--feeling very thirsty or hot, being unable to urinate, heavy sweating, or hot and dry skin.
Common side effects may include:
upset stomach, nausea, vomiting;
loss of appetite; or
weakness.
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.
 Rivastigmine side effects (more detail)
