Some side effects of this medication include (but are not limited to): heart palpitations, changes in blood sugar levels, bleeding or inflammation of the gums, edema, fatigue, and weight loss. Drug interactions include Vitamin A, Tetracyclines, St. John's Wort, and others including female pregnancy hormones. Nosebleeds, dry skin, cracked lips, dry nose and mouth, and conjunctivitis were reported in some patients.