* Intracranial hypertension, or high cerebrospinal-fluid pressure (Am J Ther, 2004; 11: 507-16).
* Circulatory problems, including a reduced or increased platelet count (J Eur Acad Dermatol Venereol, 2004; 18: 718-20).
* Nasal-tip deformities in patients who have had nasal surgery (Aesthetic Plast Surg, 2005; 29: 102-6).
* Heart palpitations (Pacing Clin Electrophysiol, 2005; 28: 348-9).
For safe alternative treatments for acne, see WDDTY vol 15 no 1.