Maxidone

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Maxidone

Treatment option: Pain

Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Maxidone

Quick Facts

Property Description
Active Ingredient(s) Hydrocodone Bitartrate & Acetaminophen
Form Oral Tablet or Oral Solution (Elixir)
Pharmacological Class Opioid/Narcotic Analgesic Combination
General Purpose Relief of moderate to severe pain
Type Combination Product (Semi-synthetic + Synthetic)

What Type of Medicine is Maxidone?

Maxidone is the brand name for a prescription combination drug that pairs two active components: the opioid hydrocodone bitartrate and the non-opioid acetaminophen (also known as paracetamol). It is an opioid/narcotic analgesic combination used for managing pain. Maxidone is available as an oral tablet or a liquid oral solution (elixir), which are both taken by mouth. The hydrocodone component is semi-synthetic, while acetaminophen is fully synthetic.

Maxidone’s Composition and Purpose

The primary purpose of Maxidone is to provide strong relief from moderate to severe pain when other pain relievers are insufficient, such as after a significant injury or surgical procedure. The drug’s composition strategically combines a narcotic analgesic with an antipyretic (fever reducer) and non-narcotic analgesic. The combination of hydrocodone and acetaminophen is a clinically recognized formulation for managing pain. This pairing allows the medication to address intense discomfort using two different chemical pathways in the body.

How Maxidone Differs from Single-Ingredient Pain Relievers

The most significant feature of Maxidone is its dual-agent composition, delivering two distinct medicines in a single dose. This is conceptually different from taking a single-ingredient over-the-counter pain reliever, which lacks the central nervous system action of the opioid component. This dual-agent formulation is intended to create a synergistic effect, meaning the ingredients work together to produce a greater overall pain-relieving effect than either component could achieve alone. This powerful, sophisticated approach is reserved for managing more intense levels of pain.

Regulatory References

  1. NIH/NLM Drug Information on Hydrocodone and Acetaminophen
  2. MedlinePlus

What side effects are possible with Maxidone?

Possible Side Effects and Safety Information

The medicine's safety profile is officially categorized by System-Organ Class (SOC) and documented frequency. The most frequently reported adverse reactions are classified within the Nervous System and Gastrointestinal System disorders. These common effects include lightheadedness, dizziness, sedation, nausea, and vomiting. These are sometimes noted to be more pronounced in ambulatory patients.

System-Organ Class Common Adverse Reactions
Nervous System Sedation, Dizziness, Lightheadedness, Lethargy
Gastrointestinal Nausea, Vomiting, Constipation, Dry mouth

Serious Adverse Reactions are explicitly defined in regulatory documentation. These high-impact events include the risk of life-threatening respiratory depression, particularly upon initiation of therapy or following a dosage increase. Due to the acetaminophen component, the risk of Acute Liver Failure (Hepatotoxicity), which can be fatal, is officially documented. Other serious documented risks include Severe Skin Reactions (e.g., Stevens-Johnson Syndrome) and conditions such as Serotonin Syndrome and Adrenal Insufficiency.

Safety Considerations for Specific Populations are stated in the official labels. Caution is defined for older adults due to increased sensitivity to the effects and the higher frequency of reduced organ function. Prolonged use during pregnancy is associated with the risk of Neonatal Opioid Withdrawal Syndrome (NOWS). Use is generally restricted or requires caution in patients with significant respiratory compromise, severe bronchial asthma, or known gastrointestinal obstruction.

Risks are also tied to the duration of exposure: physical dependence and withdrawal symptoms may occur if the medicine is abruptly stopped after long-term use. The official safety documentation strictly governs the understanding of these risks.

Overdose and Emergency Response

Maxidone overdose presents as a dual-agent toxicity involving the separate, life-threatening effects of the opioid (hydrocodone) and the non-opioid (acetaminophen) components. Overdosage from the hydrocodone component can rapidly lead to severe central nervous system manifestations, including dose-related respiratory depression, extreme somnolence progressing to coma, miosis (pinpoint pupils), cyanosis (bluish skin/lips), and potential circulatory collapse or cardiac arrest. Early acetaminophen toxicity often presents with nausea, vomiting, and diaphoresis (sweating).

The most serious adverse effect from overdosage is potentially fatal hepatic necrosis caused by the acetaminophen, where the clinical and laboratory evidence of severe liver injury may be delayed 48 to 72 hours after ingestion. Accidental ingestion of even a single dose by a child can be fatal.

Regulatory guidance mandates that immediate medical attention must be sought for any suspected overdose due to these combined risks. Emergency management is structured by the availability of specific antidotes: Naloxone is administered for opioid-induced effects, and N-acetylcysteine (NAC) is administered to mitigate potential hepatic damage. Treatment involves support of cardiorespiratory function and measures like activated charcoal to reduce drug absorption. Hospital monitoring, including liver function tests, is required due to the delayed nature of the acetaminophen toxicity.

Therapeutic Uses of Maxidone

What Maxidone Treats: Main Uses and Benefits

Maxidone is generally considered relevant for easing symptoms that create noticeable physiological strain, particularly severe physical discomfort. The combination is applied in situations where additional management of discomfort is required and symptoms necessitate the use of an opioid analgesic. This medication is commonly used to help manage pain categorized as moderate to severe, as well as providing symptomatic relief for a persistent, nonproductive cough.


Symptomatic Support and Benefits

This medication is primarily relevant for managing symptom clusters that appear suddenly or intensify over time, such as discomfort following a surgical procedure, major injury, or dental extraction. It is also used to address acute pain accompanied by fever, as it assists in managing two distinct sources of patient distress. This approach provides supportive relief that helps ease the overall symptom burden, contributes to easing the overall symptom load during periods of heightened symptoms.

“The combination is relevant in contexts marked by increased discomfort and can help to address groups of symptoms that interfere with daily comfort.”


Quick Fact: Therapeutic Focus: Moderate to Severe Pain

Therapeutic Focus Primary Use Category
Pain Moderate to Severe Discomfort
Fever Symptom Management in Acute States
Cough Persistent, Nonproductive Types

Regulatory References

  1. NIH MedlinePlus overview of Hydrocodone Combination Products

Eligibility and Restrictions for Use

Official Population Eligibility for Maxidone

Official regulatory documentation, such as FDA labeling, establishes clear rules for who is eligible to use Maxidone (Hydrocodone Bitartrate & Acetaminophen) and defines specific populations for whom use is prohibited or restricted.

Classification Population Status Defined by Regulators
Absolute Contraindication Patients with significant respiratory depression or acute, severe bronchial asthma. Must Not Use
Patients with known or suspected gastrointestinal obstruction (e.g., paralytic ileus). Must Not Use
Patients with known hypersensitivity to hydrocodone or acetaminophen. Must Not Use
Age Restriction General pediatric population. Safety and effectiveness have not been established.
Elderly or debilitated patients. Use with caution (risk of over-sedation, decreased organ function).
Condition-Specific Restriction Patients with severe hepatic or renal function impairment. Use with caution.
Patients with head injury or increased intracranial pressure. Use with caution.
Pregnancy Eligibility Pregnant women (Prolonged Use). Risk of Neonatal Opioid Withdrawal Syndrome (NOWS) is documented.
Lactation Status Nursing Mothers. Acetaminophen is excreted in milk; it is not known if hydrocodone is excreted.

Eligibility is defined by excluding patients whose physiological state creates an acute risk or those for whom safety data is lacking. Use is generally restricted to adults requiring moderate to severe pain relief.

What should I know about interactions with other medicines?

Maxidone Interactions with other medicines and products

The interaction profile of Maxidone (Hydrocodone Bitartrate & Acetaminophen) is defined by pharmacokinetic and pharmacodynamic constraints documented in official regulatory sources.

Documented Interaction Restrictions

Category Regulatory Statement
Contraindicated Combinations The co-administration of Monoamine Oxidase Inhibitors (MAOIs) is formally prohibited, requiring a mandatory 14-day timing separation after the MAOI is discontinued. Co-use with Mixed Agonist/Antagonist Opioid Analgesics (e.g., Naltrexone) is not recommended.
Pharmacodynamic Potentiation Concurrent use with Central Nervous System (CNS) Depressants (e.g., benzodiazepines, muscle relaxants) results in an additive pharmacologic effect, increasing the risk of profound sedation and severe respiratory depression. Co-administration with Serotonergic Drugs may result in serotonin syndrome.
Metabolic Alteration Interactions with substances that inhibit or induce the CYP3A4 enzyme can significantly alter hydrocodone plasma concentrations. CYP3A4 Inhibitors increase exposure, while CYP3A4 Inducers decrease exposure, which may reduce efficacy.
Cumulative Toxicity Risk Administration with other acetaminophen-containing products increases total daily acetaminophen exposure, raising the documented risk of acute hepatotoxicity.
Substance Interactions The co-ingestion of Alcohol (Ethanol) is documented to enhance CNS effects and may increase hydrocodone blood levels. Grapefruit Juice may also increase hydrocodone blood levels.

Population-Specific Interaction Notes

Use requires caution in patients with severe hepatic or renal impairment, as the risk of toxic reactions may be greater due to potential accumulation of the parent compounds and/or their metabolites. This information is based on official government documentation defining the product’s interaction structure.

Mechanism of Action

mu-Opioid Receptor Agonism and Nociceptive Transmission

The hydrocodone component of Maxidone acts as an agonist at the mu-opioid receptors (MOR) located primarily within the central nervous system (CNS). Binding to MOR initiates a cascade that inhibits adenylyl cyclase and modulates ion channel conductance, leading to the inhibition of pain-signaling neurotransmitter release (e.g., Substance P, glutamate) and the hyperpolarization of postsynaptic neurons. This action modifies the ascending flow and central processing of nociceptive signals.


Central Prostaglandin Synthesis Inhibition and Pathway Sensitization

The acetaminophen component exerts its effect primarily through the central inhibition of prostaglandin synthesis, likely involving a centrally acting variant of the Cyclooxygenase (COX) enzyme. This mechanism contributes to a change in pain pathway activity by lowering the overall sensitization of central pain responses and is associated with the modulation of the body's thermoregulatory center.


Modulating Signal Propagation in Pain Cascades

The combined, complementary actions of MOR agonism and central prostaglandin blockade modify early molecular steps. This dual engagement initiates a suppression of signaling sequences that ultimately shapes the drug's systemic physiological outcomes, contributing to a persistent alteration in pain pathway activity within the CNS.

Dosage and Administration Information

Maxidone is administered exclusively via the oral route, available as an immediate-release oral tablet or an oral solution. The medication is used on an as-needed basis, not a fixed schedule. The standard adult dosing regimen involves taking one or two tablets, or the equivalent volume of oral solution, every four to six hours. This frequency must be strictly adhered to, and a minimum of four hours must elapse between individual doses. Administration may occur with or without food.

A key administration principle involves strict adherence to maximum daily dose limits. The total intake of the hydrocodone component should generally not exceed 60 mg over a 24-hour period. Crucially, the total amount of acetaminophen consumed from Maxidone and any other sources must be strictly limited to a maximum of 4,000 mg (4 g) in 24 hours. Patients are explicitly instructed against taking other medicines containing acetaminophen to prevent exceeding this threshold.

To ensure correct intake, the liquid oral solution must be measured using a medication-specific device, rather than a household spoon. Use in specific patient populations requires adjustment: dose selection for older adults or those with hepatic or renal impairment should be cautious, often starting at the lowest end of the typical dosing range. In pediatric patients (aged two years and older), dosing is typically calculated based on the child’s weight. The medication should be used for the shortest possible duration that aligns with the treatment plan.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Maxidone

This section provides an overview of the research that has been conducted on the combination of hydrocodone and acetaminophen, focusing on the types of studies available and the context of their findings, while strictly avoiding clinical advice or overstating certainty.


Evidence for use in Acute Moderate to Severe Pain

The primary research base for the combination of hydrocodone and acetaminophen for conditions associated with acute discomfort consists of randomized controlled trials (RCTs) and subsequent systematic reviews. These studies were designed to evaluate how outcomes related to physical discomfort were measured and tracked over a brief time, typically comparing the medicine to a placebo or other pain relievers.

Findings describe patterns observed in the studies where the combination product was associated with measured changes in pain intensity scores when compared to placebo. Studies exploring short-term symptom changes reported measured outcomes related to physical discomfort that were not substantially different from those observed with non-opioid combination products in many acute scenarios. This evidence contributes to the overall documentation regarding the studied effects on physical discomfort.


Evidence for use in Chronic Moderate to Severe Pain

The research exploring the combination product for conditions characterized by persistent discomfort involves a combination of medium-term RCTs and observational studies. These research scenarios focused on opioid-experienced adults with conditions where symptoms may vary in intensity over time, such as chronic low back pain.

Findings related to sustained symptom management were observed in some studies that examined effects over defined time intervals. However, regulatory reviews note that the evidence on long-term outcomes (beyond three months) related to the use of immediate-release opioid combinations remains limited. Studies often examine only specific extended-release versions of the opioid component rather than the combination product itself.


Uncertainties and Research Gaps

This medicine was studied for managing physical discomfort, but research highlights that several areas of uncertainty remain in the evidence base. Key limitations include:

  • The research base includes limited comparative data between the combination product and non-opioid alternatives in routine acute care settings.
  • Information remains limited for long-term outcomes, such as functional improvements or patient-reported quality of life, beyond short treatment durations.
  • The limited information available for outcomes in specific patient subgroups, particularly those with complex or co-occurring health conditions.

Key Studies & References MedlinePlus Drug Information: Hydrocodone Combination Products

Frequently Asked Questions (FAQ)

Common questions about Maxidone (FAQ)

Q: What is Maxidone used for?

A: According to the official product information, Maxidone is approved for the treatment of moderate to severe acute pain in adults. It is typically indicated for use when non-opioid pain relief is insufficient. Maxidone belongs to a class of medicines called opioid analgesics, which work by changing how the body senses pain.

Q: How long does it take for Maxidone to work?

A: Studies and official information indicate that Maxidone typically begins to relieve pain within 30 minutes after taking it. The official product information indicates the peak effect is generally reached within 1 to 2 hours after administration. Individual responses to the medicine can vary.

Q: Can I drink alcohol while taking Maxidone?

A: Regulatory documents state that consuming alcohol while taking Maxidone is not recommended and generally should be avoided. Combining alcohol with Maxidone can lead to an increase in the effects of the medicine. This combination significantly raises the risk of serious side effects like extreme drowsiness and severe respiratory depression (slowed breathing).

Q: Is Maxidone an addictive medicine?

A: Maxidone is a controlled substance and official product information warns that it has the potential for dependence and addiction. As a controlled substance, official information indicates that long-term or repeated use carries a risk of physical and psychological dependence, even when taken as prescribed. Official labeling suggests using Maxidone for the shortest duration necessary.

Q: What should I do if I miss a dose of Maxidone?

A: According to the official product information, if a dose is missed, it should be taken as soon as the person remembers, unless it is almost time for the next scheduled dose. If it is nearly time for the next dose, the missed one is typically skipped, and the regular schedule is continued. It is not recommended to take two doses at the same time to compensate for a missed dose.

Q: Can I drive or operate machinery after taking Maxidone?

A: Regulatory documents state that Maxidone can cause significant drowsiness, dizziness, and impaired mental and physical abilities. The official labeling advises against driving or operating heavy machinery until it is known how Maxidone will affect the individual. This caution is in place to reduce the risk of accidents.

Q: Is it safe to use Maxidone if I am pregnant or breastfeeding?

A: Official product information contains specific warnings regarding the use of Maxidone during pregnancy and breastfeeding. Maxidone is generally not recommended during these periods because of potential risks to the fetus or newborn, including the risk of withdrawal symptoms after birth. Official labeling states that the medication should only be used if the potential benefit outweighs the potential risk.

How should Maxidone be stored and disposed of?

How to Store and Dispose of Maxidone

Maxidone (hydrocodone/acetaminophen) must be stored and handled according to strict regulatory guidelines for controlled substances to prevent accidental ingestion and misuse.

Storage Requirements

  • Temperature and Environment: Store the medication at controlled room temperature, which is typically 20 C to 25 C (68 F to 77 F). Keep the product away from excess heat and moisture; do not store it in the bathroom.
  • Container and Protection: The medication must be kept in its original container, which should be tightly closed at all times.
  • Child Safety: To prevent fatal accidental ingestion, the product must be stored strictly out of the sight and reach of children.

Official Disposal Instructions

Unused or expired Maxidone should be disposed of promptly. The preferred method is using a drug take-back program or a DEA-authorized collector. If these are unavailable, the FDA specifically recommends immediately flushing the unused medication down the toilet to remove the high-risk opioid from the home. Before discarding the empty container, all personal information on the label must be completely removed.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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