Hydrocodone is a doctor Suggested Pain Relief medicine. It is used to treat severe pain. Hydrocodone is used for a short term period, use it in a long time period can cause effects on the body. Hydrocodone 10-650 mg Side Effects are Faintness,Muscle pain, Loss of appetite, Sleeping problem, Abnormal dreams, Weakness in body, Skin Rash, Dark Urine, Headache, Hiccups, Indigestion, Weight loss, Anxiety, Belching, Hair loss. Do not use this medicine for normal pain. Always contact a doctor before using this medicine.