A white oblong pill imprinted with “IP 110” is a combination prescription pain reliever containing 10 mg of Hydrocodone Bitartrate and 325 mg of Acetaminophen.
Generic for higher-strength formulations like Norco 10/325, Vicodin 10/325, and Lortab 10/325, this medication is manufactured by Amneal Pharmaceuticals. Because it contains an opioid, it is classified in the United States as a Schedule II controlled substance due to its potential for addiction, misuse, and physical dependence.
Physical Pill Identification
To confirm you have the exact tablet, verify these physical characteristics:
- Imprint:
IP 110stamped on one side - Score Line: A bisect line across the reverse side (allowing the pill to be split into two equal 5 mg/162.5 mg portions if prescribed)
- Color: White to off-white
- Shape: Oblong / Capsule-shaped
- Active Ingredients: Hydrocodone bitartrate (10 mg) + Acetaminophen (325 mg)
- Verification Notice: Never consume an unidentified pill. Other dosage strengths (like 5 mg/325 mg or 7.5 mg/325 mg) carry different imprint numbers (e.g.,
IP 109orIP 108). If you are uncertain about a pill’s identity, consult a pharmacist before taking it.
Mechanism of Action
The IP 110 pill combines two active pain-relieving agents that target pain signals through complementary pathways:
- Hydrocodone Bitartrate (Opioid Analgesic): Hydrocodone is a semi-synthetic opioid agonist. It binds to (mu-opioid) receptors located throughout the brain, spinal cord, and central nervous system. This blocks incoming pain signals and changes how the brain perceives pain, while also releasing dopamine, which can induce feelings of relaxation or calm.
- Acetaminophen / APAP (Non-Opioid Analgesic): Commonly known as Tylenol, acetaminophen inhibits prostaglandin synthesis—the chemicals responsible for inflammation, pain signaling, and fever.
- Synergistic Effect: Combining these two compounds provides greater pain relief than either drug can achieve on its own at lower doses, allowing doctors to keep the opioid dose lower while still treating moderate-to-severe pain.
Recommended Dosage & Administration
Dosage varies depending on the patient’s age, medical history, pain severity, and prior opioid exposure.
- Typical Adult Dose: 1 tablet taken orally every 4 to 6 hours as needed for pain.
- Acetaminophen Daily Maximum: Do not exceed 4,000 mg of acetaminophen per day from all combined sources (including OTC cold, flu, or allergy medications). Many clinical guidelines suggest staying under 3,000 mg/day to reduce liver toxicity risks.
- Maximum Daily IP 110 Cap: Taking more than 6 tablets in 24 hours approaches or exceeds safe daily limits for both hydrocodone and acetaminophen, unless specifically directed and monitored by a doctor.
- Administration: Swallow whole with water. Taking the tablet with food or milk can help prevent nausea.
Common & Serious Side Effects
Because hydrocodone acts directly on the central nervous system and digestive tract, side effects can range from mild discomfort to severe emergencies.
Common Side Effects
- Drowsiness, fatigue, or sedation
- Dizziness or lightheadedness
- Nausea, vomiting, or upset stomach
- Constipation (a standard side effect of all opioid medications)
- Dry mouth or mild itching/rash
Serious Side Effects (Seek Emergency Medical Care)
- Severe Respiratory Depression: Dangerously slow, shallow, or irregular breathing.
- Acute Hepatotoxicity (Liver Failure): Jaundice (yellowing of skin/eyes), dark urine, extreme fatigue, or upper right abdominal pain.
- Profound Sedation & Confusion: Inability to stay awake or extreme disorientation.
- Severe Hypotension: Sudden drop in blood pressure, causing fainting or severe dizziness.
- Serotonin Syndrome: Agitation, rapid heart rate, hallucinations, or muscle stiffness (especially if combined with certain antidepressants).
Black Box Warnings & Crucial Precautions
The FDA requires severe “Black Box Warnings” on all combination hydrocodone/acetaminophen drugs due to life-threatening hazards:
Warning Category Clinical Details & Risks
- Addiction, Abuse & Misuse Hydrocodone carries a high potential for physical dependence and opioid addiction (Opioid Use Disorder). Misuse can lead to fatal overdose.
- Life-Threatening Respiratory Depression Opioids slow breathing; severe or fatal respiratory depression can occur, particularly when initiating treatment or increasing dosage.
- Hepatotoxicity (Liver Injury) Acetaminophen overdose is the leading cause of acute liver failure. Combining IP 110 with other acetaminophen products or alcohol significantly increases this risk.
- Accidental Exposure Accidental ingestion of even one tablet by anyone-especially children -can cause a fatal overdose.
- Interaction with Alcohol & CNS Depressants Mixing IP 110 with alcohol, benzodiazepines (e.g., Xanax, Valium), or sleep aids dramatically increases the risk of extreme sedation, coma, and death.
- Neonatal Opioid Withdrawal Prolonged use during pregnancy can result in life-threatening opioid withdrawal in newborns.
Key Precautions & Contraindications
- Avoid Alcohol Entirely: Alcohol amplifies the sedative effects of hydrocodone and increases the risk of severe liver damage from acetaminophen.
- Pre-Existing Medical Conditions: Use extreme caution in patients with asthma, COPD, bowel obstructions, head injuries, or a history of liver/kidney disease.
- Pregnancy & Nursing: Hydrocodone passes through breast milk and can cause respiratory depression or sedation in nursing infants. Avoid use during pregnancy unless strictly managed by a physician.