The most encountered adverse effect was mild dermatitis of the scalp. Infrequently reported adverse effects included irritant dermatitis (redness, scaling and burning), dry skin, nonspecific allergic reactions, hives, allergic rhinitis, facial swelling, sensitivity, shortness of breath headache, neuritis, dizziness, lightheadedness, syncope, vertigo, edema, chest pain, blood pressure changes, palpitations and pulse rate changes.