<p>The most frequent of side effects are dry mouth, constipation, urinary retention, increased heart rate, sedation, irritability, dizziness, and decreased coordination. Dry mouth, if severe to the point of causing difficulty speaking or swallowing, may be managed by dosage reduction or temporary discontinuation of the drug. Imipramine usage has been linked to both increases and decreases in blood pressure and heart rate. Heart attacks, congestive heart failure, and strokes have been reported. Confusion, disorientation, delusions, insomnia, and anxiety have also been reported as side effects in a small percentage of people taking imipramine. Problems associated with the skin (loss of sensation, numbness and tingling, rashes, spots, itching and puffiness), seizures, and ringing in the ears have also been reported. Nausea, vomiting, loss of appetite, diarrhea, and abdominal cramping are all side effects associated with imipramine usage in a small number of people.</p>