Hello again! Based on the search results, Dyna-pentoxifylline 400MG 30'S and Lenadol 400MG Tablets 40'S contain pentoxifylline at 400mg doses. Pentoxifylline is usually prescribed for circulation problems, so a prescription would typically be required. I'd suggest discussing your needs with a doctor first before purchasing medicine. Please let me know if you have any other questions!