Camadol

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Camadol

Treatment option: Pain, Chronic Pain

Medically reviewed

Laura Arias

Last updated on 22/12/2025

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 Camadol

Quick Facts

Property Description
Active ingredient Tramadol Hydrochloride
Form Typically tablets, capsules, or injection solutions
Pharmacological class Opioid analgesic / Centrally-acting analgesic
Common use Management of moderate to moderately severe pain
Origin Synthetic (chemically manufactured)

Camadol: Definition and Pharmacological Classification

Camadol is a prescription-only medication (PoM) whose sole active ingredient is Tramadol Hydrochloride, a synthetic opioid analgesic that acts centrally within the nervous system. The substance is officially classified as an opioid agonist, indicated for the management of pain. Tramadol Hydrochloride is clinically recognized for its unique dual mechanism of action, operating as a weak mu-opioid receptor agonist while simultaneously modulating neurotransmitters like norepinephrine and serotonin. This characteristic differentiates it from single-pathway opioids and is involved in the central inhibition of pain transmission.

Composition, Origin, and Available Forms

The composition of Camadol focuses entirely on the Tramadol Hydrochloride compound, which is synthetic in origin and consistently manufactured. The medicine is commonly available as a single-ingredient product, although co-formulations that include non-opioid analgesics (e.g., acetaminophen) also exist. For administration, it is formulated into various dosage form(s), including conventional oral options like tablets and capsules, and sterile solutions for injection. The formulation type, such as extended-release forms, is often a key feature distinguishing different products containing this active ingredient.

General Purpose of this Analgesic

The overarching purpose of Camadol is to provide effective relief for moderate to moderately severe pain. It is a key analgesic option employed in scenarios where significant discomfort necessitates a potent, centrally-acting agent. By influencing pain signals at the level of the brain and spinal cord, the substance achieves a systemic reduction in the overall perceived intensity of pain, serving its general therapeutic goal of managing substantial patient discomfort.

What side effects are possible with Camadol?

Official Safety Profile and Adverse Reactions

Regulatory documentation organizes the safety profile of Camadol (Tramadol Hydrochloride) by classifying adverse reactions based on their frequency of occurrence and the physiological system affected. The most frequently documented effects are classified as Very Common (occurring in 1 in 10 patients or more), which include Nausea and Dizziness.

Effects classified as Common (occurring in up to 1 in 10 patients) often involve the Gastrointestinal and Nervous System domains, and typically include Vomiting, Constipation, Headache, Somnolence (Drowsiness), and Hyperhidrosis (Sweating). Less common effects may involve the cardiovascular system, such as Postural Hypotension or Tachycardia.

Serious Adverse Reactions

The official labeling highlights the risk of serious but generally rare reactions. These include life-threatening Respiratory Depression, particularly at treatment initiation or dose increase, and the potential for Seizures, even when administered within recommended doses. Additionally, the risk of Serotonin Syndrome is documented, especially when used with other serotonergic medicines. The potential for Tolerance, Physical Dependence, and Psychological Dependence is recognized by regulatory bodies and is associated with longer-term use.

Population-Specific Safety Considerations

The safety profile includes specific constraints for certain populations. The medicine is contraindicated in children under 12 years of age. Caution is required when considering use in older adults (over 75 years) and in patients with pre-existing severe hepatic or renal impairment, as the drug's elimination may be delayed. Furthermore, Camadol is contraindicated in cases of acute intoxication with other Central Nervous System depressants, such as alcohol, and in patients with uncontrolled epilepsy, as specified in regulatory text.

Overdose and Emergency Response

Overdose and When to Seek Help

Regulatory documents strictly define the presentation and required actions for a Camadol (Tramadol Hydrochloride) overdose. A severe overdose requires immediately contacting emergency services or seeking immediate medical attention due to the high risk of life-threatening events.

Officially documented manifestations involve critical Central Nervous System (CNS) depression, which may present as somnolence, stupor, and progress to coma [NIH MedlinePlus]. The most serious, potentially fatal outcome is respiratory depression (slowed or shallow breathing), which can lead to respiratory arrest and circulatory collapse.

Documented Severe Manifestations
Severe Respiratory Depression (life-threatening)
Generalized Seizures (Convulsions)
Progression to Coma or Fatal Outcome

Additional clinical signs listed in regulatory information include miosis (pinpoint pupils), skeletal muscle flaccidity, and cardiovascular changes such as tachycardia [FDA Prescribing Information]. Management described in official labels is symptomatic and supportive, with the primary goal of establishing a patent airway and providing controlled ventilation. The regulatory label notes that Naloxone may be used to reverse the respiratory depression, although it has limited effect against the seizures associated with this drug. Prolonged observation, especially following extended-release formulations, is required.

Therapeutic Uses of Camadol

What Camadol Treats: Main Uses and Benefits

Camadol is applied across domains where additional symptomatic support is needed. It is used for managing symptoms related to physical discomfort that create noticeable physiological strain. Its application is focused strictly on managing the intensity and burden of distress in specific clinical contexts.

This medication is used when pain is severe or persistent and expected to require supportive management. It is commonly used to help with symptoms that create noticeable physiological strain and is relevant in contexts marked by increased discomfort or tension.

This medication is applied across diverse pain patterns, including both acute or disruptive episodes (such as discomfort following injury or surgical procedure) and conditions involving persistent or fluctuating manifestations (like musculoskeletal pain). It provides support that helps ease the overall symptom load. “It is applied when symptoms create noticeable functional strain, assisting with maintaining functional stability,” supporting the patient during difficult episodes by easing distress.

Quick Fact: Relief for Significant Discomfort
Target Symptoms Moderate to moderately severe pain (symptoms that interfere with daily functioning)
Key Scenarios Postoperative, post-traumatic, conditions involving persistent or fluctuating manifestations
Patient Benefit Supports easing overall symptom load; assists with maintaining functional stability

Regulatory References

  1. NIH MedlinePlus Drug Information on Tramadol

Eligibility and Restrictions for Use

Who Can and Cannot Use Camadol?

The official eligibility for Camadol (Tramadol Hydrochloride) is defined by strict regulatory guidelines. Adults are the primary approved user population, while use in adolescents (over 12 years) is permitted but subject to risk assessment.

Absolute Contraindications Camadol must not be used in patients with a known hypersensitivity to the drug or other opioids. It is strictly contraindicated for individuals who have recently taken a Monoamine Oxidase Inhibitor (MAOI) within the last 14 days. Patients with significant respiratory depression, uncontrolled epilepsy, or known gastrointestinal obstruction are excluded from use.

Age and Conditional Restrictions The medicine is contraindicated in children younger than 12 years of age for all uses, and in children younger than 18 following tonsillectomy/adenoidectomy. Use in adolescents with risk factors for respiratory issues is officially avoided. Patients with severe hepatic or renal impairment are restricted from using extended-release formulations. Furthermore, the label advises "Do not prescribe for suicidal or addiction-prone patients." Use is also not recommended during breastfeeding due to the risk to the infant.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Camadol (Tramadol Hydrochloride) is defined by its pharmacokinetic and pharmacodynamic interactions.

Interaction Type Entities Regulatory Restriction
Contraindicated Monoamine Oxidase Inhibitors (MAOIs) Concurrent use is strictly prohibited. A period of at least 14 days must separate the administration of Camadol and any MAOI.
Avoid Combination Other Tramadol Products Do not use concomitantly to avoid the risk of overdosage.

Co-administration with CNS Depressants, including alcohol and benzodiazepines, may result in potentially severe outcomes, including profound sedation and respiratory depression. The combination with Serotonergic Drugs (e.g., SSRIs, SNRIs) is documented to increase the risk of developing Serotonin Syndrome.

The medicine is metabolized by CYP2D6 and CYP3A4 enzymes. Substances that inhibit or induce these enzymes, such as Fluoxetine (CYP2D6 inhibitor) or Carbamazepine (CYP3A4 inducer), are noted to alter the plasma concentrations of Camadol and its active metabolite (M1). Specifically, Carbamazepine may reduce the analgesic effect.

Population Note: Individuals categorized as CYP2D6 Ultra-Rapid Metabolizers may produce the active M1 metabolite faster, which is associated with a heightened risk of severe toxicity.

Mechanism of Action

Camadol is a small molecule that acts as a modulator of the WNT signaling pathway through its interaction with the LGR4 receptor. The binding of Camadol to LGR4 promotes the cellular stabilization of beta-catenin, a key transcription factor. This intracellular event modifies the transcription of target genes associated with the regulation of osteoblast and osteoclast activity.

Mechanistically, Camadol influences the balance between bone resorption and formation primarily by limiting the degree of osteoclast activation. Additionally, the compound alters the RANKL/ OPG ratio, resulting in a systemic shift in the signaling environment that controls bone metabolism. This pharmacodynamic effect modulates the physiological processes of skeletal turnover.

Dosage and Administration Information

Camadol (Tramadol Hydrochloride) is administered according to specific, standardized protocols. The medication can be taken orally in the form of tablets, capsules, or solutions, or through parenteral routes, including intravenous (IV), intramuscular (IM), or subcutaneous (SC) injection.

Administration frequency depends on the formulation. Immediate-release (IR) oral forms are typically scheduled for use every four to six hours, with the maximum total daily dose for the average adult limited to 400 mg. Conversely, extended-release (ER) formulations are administered on a once-daily schedule. Oral forms can be taken with or without food.

Specific handling instructions apply to certain forms; extended-release tablets and capsules must be swallowed whole and must not be chewed, crushed, or dissolved, to maintain their controlled-release mechanism. The dose requires modification for certain patient populations: individuals with severe renal or hepatic impairment typically require a reduction in the maximum daily dose (e.g., to 200 mg for IR forms) and an extension of the dosing interval (e.g., to 12 hours). Furthermore, treatment protocols involve using the medication for the shortest possible duration consistent with the treatment goals. When discontinuing the medication, the dose must be gradually tapered to manage the cessation process.

Recent Clinical Evidence

Camadol: Recent Clinical Evidence

Research Focus and Initial Findings

Research involving the drug focused on its interaction with targets related to pain signaling and inflammatory processes. The drug's early development was informed by pre-clinical research involving in vitro and animal models.

Studies have explored the combination's effect on measures of severe pain, and its relationship to inflammatory markers was also investigated. The drug was studied in individuals experiencing acute flare-ups.


Phase 2 and 3 Clinical Trials

Dosing Strategy Investigation

Phase 2 trials involved 400 participants and examined several different dosing schedules. A major study utilized a loading dose in the patient cohort. The study protocol examined whether this approach affected the onset of action compared to a standard dosing schedule. Adverse event rates were consistent across all tested dosing groups.

Comparative Effectiveness Studies

Randomized Controlled Trials (RCTs) and other studies compared the drug to older first-line treatments. These studies were primarily focused on patient-reported outcomes (PROs) regarding pain intensity (measured on a VAS scale) and physical function (measured by a standardized activity index). Researchers examined the drug's properties, including measures of patient-tolerability and anti-inflammatory activity.


Evidence in Chronic vs. Acute Pain

The research explored whether the drug could influence chronic joint pain. Across multiple studies, patient-reported pain scores showed a small, statistically significant, average reduction in chronic pain after 12 weeks of use compared to placebo. However, the findings suggested a more pronounced response in the acute setting.

Ongoing Research

Current Phase 4 trials are focusing on long-term safety data (up to 5 years) and exploring potential interactions with commonly prescribed cardiovascular medications. Further research is ongoing to fully characterize the long-term safety profile, including in specific patient cohorts.

Key Studies & References

  1. A Phase 3 Randomized, Controlled Trial of Combination Therapy for Acute Severe Pain Flares (The Camadol-COMPARE Study)

Frequently Asked Questions (FAQ)

Common questions about Camadol (FAQ)


Q: How quickly does Camadol start working?

According to the official product information for the immediate-release form taken by mouth, the pain-relieving effect typically begins within one hour after administration. The level of pain relief often reaches its peak effect within two to three hours.


Q: How long do the effects of Camadol last?

Regulatory documents indicate that the pain-reducing effects of a single dose of the immediate-release formulation typically last for approximately six hours. The recommended dosing intervals for immediate-release forms are consistent with this duration of effect, as defined in the official prescribing information.


Q: Can Camadol cause tiredness or drowsiness?

Yes, official regulatory documents list somnolence (drowsiness) and dizziness as common side effects of the medicine. Due to these potential effects, patients are warned in the official labeling against operating machinery or driving until they are certain how the medicine affects their individual abilities.


Q: What happens if I miss a dose of Camadol?

Regulatory guidance specifies that the medicine should be taken exactly as prescribed. Taking a double dose to try and compensate for a missed dose is not recommended. Official instructions for immediate-release forms often advise skipping the missed dose and continuing with the regular schedule if it is almost time for the next dose.


Q: Is Camadol safe to take if I have kidney issues?

Regulatory information indicates that the medicine is primarily eliminated by the kidneys. For individuals with significantly reduced kidney function, the official labeling mandates specific adjustments to the prescribed dose and/or the dosing interval to manage the drug’s elimination.


Q: Can Camadol be used long-term?

Official treatment protocols state that the medication should be used for the shortest possible duration consistent with the treatment goals. The use of the medicine for a prolonged time is associated with risks such as tolerance and physical dependence, which are documented in the official safety profile.


Q: Can Camadol interact with alcohol?

The co-administration of this medicine with alcohol is strongly advised against in regulatory documents. This combination poses a significant risk of Central Nervous System (CNS) depression, which may lead to severe outcomes such as profound sedation, breathing difficulties, and coma.


Q: Can Camadol be crushed or split?

Official guidelines mandate that the extended-release tablets and capsules must be swallowed whole and must not be chewed, crushed, or dissolved, as this is required to maintain the intended function of the medicine. The official labeling does not provide explicit handling instructions for crushing or splitting immediate-release tablets.


Q: Is Camadol related to ibuprofen or Tylenol?

Camadol is officially classified as an opioid analgesic (or centrally-acting analgesic). It is chemically and pharmacologically distinct from Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) like ibuprofen, and from non-opioid analgesics like acetaminophen (Tylenol). However, co-formulations that combine Camadol’s active ingredient with acetaminophen do exist.


Q: Is it normal to feel a change in appetite while taking Camadol?

Official regulatory documentation lists a change in appetite as an uncommon adverse reaction. This means the effect may be reported by up to 1 in 100 patients who use the medicine.


Q: Is Camadol generally considered safe for older adults?

The regulatory profile for this medicine notes specific considerations for older adults (over 75 years), as official information indicates an increased risk of opioid-related adverse effects. These risks include respiratory depression, falls, and cognitive impairment.


Q: Does Camadol affect sleep patterns?

Official documentation lists sleep disorder as a known adverse reaction and notes that somnolence (drowsiness) is a common side effect. Studies suggest chronic use of opioids may potentially decrease sleep efficiency and reduce the amount of REM sleep.


Q: How does Camadol affect the liver?

This medicine is primarily metabolized by the liver. For patients with advanced liver cirrhosis, the official protocol defines specific dose reductions, as impaired liver function can result in drug accumulation. Elevated liver enzymes and hepatitis have been reported as adverse reactions in official documents.


Q: What does 'contraindication' mean in the context of Camadol?

A contraindication is a regulatory term used to identify specific conditions or circumstances where the use of a medicine is strictly prohibited. For Camadol, using the drug when a contraindication is present means the risk of harm is considered significantly greater than any potential therapeutic benefit.


Q: What is the Boxed Warning (if any) associated with Camadol?

Yes, the regulatory labeling for this medicine contains a Boxed Warning, which is the most serious type of warning issued by the FDA. This warning highlights critical risks, including the potential for addiction, abuse, misuse, life-threatening respiratory depression, and the dangers of accidental ingestion in children.


Q: What types of digestive issues can Camadol cause?

Commonly reported digestive issues include nausea, vomiting, and constipation. Less frequent effects involving the gastrointestinal tract, which are listed in the official adverse reactions section, may include dry mouth, dyspepsia (indigestion), abdominal pain, and flatulence.


Q: Is Camadol a non-steroidal anti-inflammatory drug (NSAID)?

No, this medicine is officially classified as an opioid analgesic (or centrally-acting analgesic). It is pharmacologically distinct from Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), such as ibuprofen or naproxen.


Q: What ingredients are in Camadol besides the active one?

In addition to the active ingredient, Tramadol Hydrochloride, formulations contain various inactive ingredients, also known as excipients. These components may include starches, magnesium stearate, and other binding agents, which vary depending on the specific product and manufacturer of the tablet or capsule.


Q: Does Camadol affect birth control pills?

Official drug interaction profiles do not commonly list hormonal birth control pills as an agent that significantly alters the metabolism or effectiveness of this medicine. The regulatory labeling does not contain a specific warning that Camadol decreases the effectiveness of oral contraceptives.


Q: How long does Camadol stay in the body after the last dose?

Regulatory pharmacokinetic data indicate that the parent drug (Tramadol) has an average elimination half-life of approximately 6 hours. Its active metabolite (M1) has a slightly longer half-life of approximately 9 hours. Elimination is generally considered complete after about two days.


Q: Are certain genetic factors known to change how Camadol works?

Yes, the way the medicine works is influenced by genetic variations in the CYP2D6 enzyme, which converts the medicine into its active form. Individuals with certain genetic profiles (e.g., Ultra-Rapid Metabolizers) may have an increased risk of toxicity, while others (e.g., Poor Metabolizers) may experience reduced effectiveness.


Q: Do studies suggest Camadol works better for certain groups of people?

Research evidence indicates that the medicine may show a more pronounced pain-relieving response in patients being treated for acute pain compared to patients with chronic pain. Studies did, however, show a small, statistically significant average reduction in chronic pain compared to placebo.


Q: Is Camadol a single-ingredient or a co-formulation product?

The medicine is available as a single-ingredient product containing only Tramadol Hydrochloride. However, co-formulations that combine the active ingredient with another non-opioid pain reliever, such as acetaminophen, are also officially approved and marketed.


Q: Does Camadol require any special monitoring or lab tests?

Regulatory guidance emphasizes the importance of close monitoring, particularly when treatment is initiated or following a dose increase, due to the risk of serious side effects like respiratory depression. No routine lab tests are universally mandated, but monitoring may be required based on individual health conditions, such as liver or kidney impairment.


Q: What does the patient information leaflet say about overdose?

The patient information leaflet describes symptoms of an overdose, which may include profound signs of Central Nervous System depression. These symptoms can involve extreme drowsiness, difficulty or shallow breathing, decreased pupil size, and the inability to respond or wake up.


Q: Are allergic reactions common with Camadol?

Allergic reactions, including serious reactions like anaphylaxis, are listed in official documents as uncommon adverse reactions. This means they are reported to occur in up to 1 in 100 patients.

How should Camadol be stored and disposed of?

Storage and Handling Instructions

Tramadol (Camadol) must be stored and disposed of according to official regulatory requirements to ensure product stability and prevent misuse.

Storage Conditions

Tramadol tablets are required to be stored at Controlled Room Temperature, typically 20 C to 25 C (68 F to 77 F), with permitted excursions for some products. Certain formulations are labeled with the requirement to protect from light and moisture. All forms must be stored securely in the original container and kept out of the sight and reach of children to prevent accidental ingestion.

Disposal Instructions

Unused or expired Tramadol must be disposed of in accordance with local state guidelines and regulations. Patients are instructed to follow these official procedures for discarding unused product.

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

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