Some of these side effects may occur when taking this medication; they are as follows; Headache, dizziness, lightheadedness, nausea, flushing, and burning/tingling under the tongue may occur. However, if these symptoms do persist or worsen, it is best then to speak with your doctor.
Headache is often a sign that this medication is working. Your doctor may recommend treating headaches with an over-the-counter pain reliever (such as acetaminophen, aspirin). If the headaches continue or become severe, tell your doctor promptly.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.