This is usually used for 4-5 days of short-term acute pain. You can take 37.5/325 mg tablets 2 tablets in every 4-6 hours gape & maximum of 8 doses of Tramadol. Having these doses sometimes you may feel drowsy, sleepy, tired & constipated. If these symptoms are normal, the symptoms get well within a few days or weeks. If the situation may worsen, coordinate with your doctor soon.