Physicians primarily prescribe the generically named drug tramadol to manage pain if it exists in moderate or severe form. The medication, marketed in Australia as Tramahexal SR, classifies as a narcotic analgesic, derived from the same opium poppy as heroin. For this reason, MayoClinic.com indicates, taking tramadol for a long time can lead to physical and mental addiction. MyDr.com.au states that serious side effects of Tramahexal SR occur only rarely.
Constipation
One of the most common side effects of narcotic analgesics, such as Tramahexal SR, is disruption of bowel activity, or constipation. Over-the-counter laxatives can help. MayoClinic.com indicates, that as a person's body adjusts to Tramahexal SR, constipation will end. If constipation persists, medical consultation is advised.
Nausea
Tramahexal SR can cause other problems in the digestive system. When a person first uses this drug, nausea and vomiting may occur, MyDr.com.au states. Sometimes, stomach problems will occur in less severe forms such as indigestion. Tramahexal SR also may cause a changes in appetite. These digestive side effects typically end on their own, and do not classify as serious problems.
Pain
Taking tramadol can cause pain in several areas of the body, including the abdomen or stomach. When first taken, it can also cause headaches, as well as pain in the muscles and joints, MayoClinic.com reports. The pain in the muscles may exist with, or separate from, feelings of weakness or loss of strength in the muscles. This can make the person using Tramahexal SR feel fatigued, MyDr.com.au indicates.
Flu-Like Syndrome
Many medications, including narcotic analgesics, such as Tramahexal SR, can cause a group of side effects known as flu-like syndrome. This syndrome causes flu-like symptoms such as fever, nasal congestion, runny nose and a sore throat.
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