Undesirable effects are rare. When using this product the patient may experience drowsiness, sedation, nervousness, difficulty sleeping, tiredness, dizziness, difficulty concentrating, lack of coordination, headache, blurred vision, dry mouth, increased blood pressure, nausea and vomiting may occasionally occur. Children and the elderly are more likely to develop adverse effects with this medicine.
Stop taking this medicine and consult the physician immediately if the patient has the following reactions: a. allergic reactions such as skin rash or itching, sometimes with breathing problems or swelling of the lips, tongue, throat or face.
b. a skin rash or peeling, or mouth ulcers.
c. previously experienced breathing problem with aspirin or non-steroidal anti-inflammatory drugs, and experiences a similar reaction with the product.
d. unexplained bruising or bleeding.
e. loss of vision, which may be due to abnormally high blood pressure in the eye. This is rare but more likely to occur in those with glaucoma.
f. an unusually fast pulse rate, or a sensation of an unusually fast or irregular heartbeat.
g. difficulty in passing urine. This is more likely to occur in men with an enlarged prostate gland.