Hydrocodone can also cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert. The most common side effects of. A hydrocodone overdose can be fatal, especially in a child or other person using the medicine without a prescription. Overdose symptoms may include slow heart rate , severe drowsiness, muscle weakness, cold and clammy skin, pinpoint pupils, very slow breathing, or coma. Tramadol and hydrocodone are two types of potent pain relievers called opioid analgesics. They’re often used to treat moderate to severe pain, such as long-term pain related to cancer or other. Hydrocodone, sold under brand names such as Vicodin and Norco among many others, is a semisynthetic opioid derived from codeine, one of the opioid alkaloids found in the opium poppy. It is a narcotic analgesic used orally for relief of moderate to severe pain, but also commonly taken in liquid form as an antitussive/cough suppressant. Find information about common, infrequent and rare side effects of Hydrocodone-Acetaminophen Oral. Applies to hydrocodone: compounding powder, oral capsule extended release, oral tablet extended release General The most commonly reported side effects included constipation , nausea, vomiting, fatigue, upper respiratory tract infection , dizziness, headache, and somnolence. SIDE EFFECTS. The following adverse reactions have been identified during post approval use of hydrocodone and acetaminophen tablets. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Has anyone ever been told they have a sensitivity to hydrocodone? My son had one last night.It was horrible. It lasted almost as long as the hydro. Hydrocodone: Respiratory depression, extreme somnolence progressing towards coma, muscle limpness, cold and clammy skin, slow heart rate, low blood pressure, abrupt loss of heart function, and death may occur. Hydrocodone, the narcotic component of Norco, makes it ripe for abuse, especially since it's easily available as a generic and is not an expensive drug. The drug can give users a feeling of.