Tramadol is a pain relieving prescribed drug that falls under the class of drug called opioid analgesics. OL-Tram or Ultram are brand names of Tramadol that alters your brain’s response towards the sensation of pain.
Immediate release pills and extended release pills are two forms of Tramadol. The major difference between the two pills is that the former is available only in 50 mg dosage while the later in 100 mg and 200 mg dosage. Tramadol Er is prescribed to patients suffering from chronic pain, which is a well-tolerated medicine with rare but non-injurious side effects which are constipation and nausea.