Hydrocodone

Opioids

Also known as: Vicodin, Norco, Lortab, Hydros, Vikes

Medical Review & Editorial Standards

All content is written, edited, and medically reviewed by licensed professionals with expertise in addiction medicine and behavioral health.

Author

Benjamin Zohar

NCACIP

Nationally Certified Advanced Clinical Intervention Professional and recovery advocate in long-term recovery, specializing in intervention services and treatment coordination.

Editor

Ezra Zohar, M.S.Ed.

Educational Specialist

Educational Specialist with M.S. in Secondary Education, reviewing educational content focused on addiction awareness and recovery.

Medical Reviewer

Brandon McNally

Registered Nurse with specialized training in addiction medicine and behavioral health nursing.

Last Updated

November 2025

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What is Hydrocodone?

Hydrocodone is a semi-synthetic opioid derived from codeine, primarily used to treat moderate to severe pain. It is one of the most commonly prescribed opioids in the United States. Hydrocodone works by binding to opioid receptors in the brain and spinal cord, blocking pain signals and producing feelings of euphoria and relaxation. It is often combined with acetaminophen (Tylenol) in medications like Vicodin and Norco, or with ibuprofen in medications like Vicoprofen. The drug's pain-relieving effects and ability to produce euphoria have led to widespread misuse and addiction. Hydrocodone is classified as a Schedule II controlled substance due to its high potential for abuse and dependence.

Effects

Hydrocodone produces strong pain relief, euphoria, drowsiness, and relaxation. Users experience reduced anxiety, feelings of warmth, and sedation. The medication slows breathing and heart rate, causes constipation, and may produce nausea or vomiting, especially in first-time users. The euphoric effects typically begin 30-60 minutes after oral consumption and last 4-6 hours. Users may experience "nodding" - drifting in and out of consciousness - at higher doses. Some people experience itching or flushing as histamine is released.

Risks & Dangers

The primary danger of hydrocodone is respiratory depression, which can be fatal. Risk increases significantly when combined with alcohol, benzodiazepines, or other depressants. Overdose can cause slowed or stopped breathing, unconsciousness, and death. Chronic use leads to physical dependence, requiring progressively higher doses to achieve the same effects. This tolerance increases overdose risk. Long-term use causes severe constipation, hormonal imbalances, and immune system suppression. Hydrocodone-acetaminophen combinations pose additional risk of liver damage from excessive acetaminophen intake. Many overdose deaths involve the acetaminophen component damaging the liver.

Withdrawal Symptoms

Withdrawal begins 6-12 hours after last use and peaks at 1-3 days. Symptoms include severe muscle aches, bone pain, insomnia, anxiety, sweating, dilated pupils, runny nose, nausea, vomiting, diarrhea, goosebumps (cold turkey), rapid heartbeat, and intense drug cravings. Acute withdrawal lasts 5-10 days, but psychological symptoms and sleep disturbances can persist for months.

Addiction Potential

Extremely high. Hydrocodone is one of the most addictive prescription medications. Physical dependence can develop within days to weeks of regular use. Psychological addiction develops as users come to rely on the drug for pain relief, mood elevation, or escape from stress. Tolerance develops rapidly, requiring higher doses.

Duration

Pain relief begins: 30-60 minutes. Peak effects: 1-2 hours. Duration: 4-6 hours for immediate-release formulations. Extended-release versions last 8-12 hours.

Legal Status

Schedule II controlled substance in the United States. Available only by prescription. Possession without a valid prescription is illegal and subject to criminal penalties. The DEA closely monitors hydrocodone prescriptions due to high abuse potential.

Dosage Information

Medical dosing varies based on pain severity and opioid tolerance. Typical starting dose: 5-10mg every 4-6 hours. Maximum daily dose should not exceed amounts that would provide more than 4000mg of acetaminophen (liver toxicity risk). Street users often consume 30-100mg or more, dramatically increasing overdose risk.

Alcohol Interaction Warning

Mixing Hydrocodone with alcohol can be extremely dangerous and potentially life-threatening. Combining substances increases the risk of:

• Respiratory depression and overdose
• Unpredictable effects and loss of consciousness
• Increased toxicity to liver and other organs
• Impaired judgment leading to risky behaviors

Learn more about alcohol use disorder and polysubstance use.

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