Algicalm (Codeine)

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Algicalm (Codeine)

Method of action: Antitussive Opioid

Treatment option: Cough

Medically reviewed

Marina Burgos

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 Algicalm (Codeine)

Quick Facts: Algicalm (Codeine) Identity

Property Description
Active ingredient Codeine (often Codeine phosphate)
Form Tablet, Oral solution, Injectable solution
Pharmacological class Opioid analgesic, Antitussive
Common use Symptomatic relief of pain and cough
Origin Semisynthetic alkaloid

What Type of Medication is Algicalm (Codeine)?

Algicalm is a medication whose identity is defined by its active ingredient, Codeine, which is classified as both an opioid analgesic and an antitussive agent. The compound itself is chemically known as methylmorphine and falls within the family of narcotic analgesics due to its action on the central nervous system. As a semisynthetic alkaloid, its creation involves chemical modification of morphine, a naturally occurring compound derived from the opium poppy (Papaver somniferum). This classification characterizes the compound's dual efficacy.

Composition and Available Pharmaceutical Forms

The core composition of Algicalm features the active component Codeine, frequently found as the readily soluble salt form, Codeine phosphate. This ingredient is prepared in common oral dosage forms, including the tablet and the oral solution, utilizing basic excipients or a syrup base. Unlike some combination products that contain the same active ingredient, Algicalm can be formulated as a specific single-entity product, which simplifies the control of the primary opioid component without the presence of other analgesics.

Fundamental Purpose and Symptomatic Relief

The fundamental purpose of Algicalm is to provide symptomatic relief for specific types of discomfort and persistent coughing. Codeine serves a role as an analgesic in pain and palliative care. This application corresponds to the drug's established utility. Its dual function allows it to lessen the perception of discomfort and reduce the frequency of non-productive coughing, defining its core therapeutic benefit.

Regulatory References

  1. WHO Essential Medicines List for Codeine
  2. in pain and palliative care

What side effects are possible with Algicalm (Codeine)?

Possible side effects and safety information

Official regulatory documents classify the possible adverse effects of Algicalm (Codeine) by their documented frequency and the affected organ system. These safety classifications are derived from comprehensive clinical data reviewed by government health authorities like the FDA and EMA.

Adverse Reaction Scope

Classification Detail Affected Systems and Common Reactions
Common (1% to 10%) Effects on the Nervous System (dizziness, somnolence) and Gastrointestinal Disorders (nausea, vomiting, constipation).
Uncommon/Rare Reactions such as pruritus (itching) and, less frequently, severe hypersensitivity reactions.

Serious Adverse Reactions and Safety Constraints

Regulatory labeling highlights specific serious risks tied to Algicalm's pharmacological class. The most serious adverse reaction documented is Respiratory Depression, which is a rare but life-threatening risk. Furthermore, due to its properties, official labels explicitly state a high potential for abuse, misuse, tolerance, and physical dependence upon prolonged use, a core regulatory constraint.

Population-Specific Safety Considerations

The official safety profile includes explicit warnings for certain populations. Children under 12 years are subject to restrictions or contraindications for use as an analgesic. Warnings are also documented for breastfeeding women due to the risk of serious adverse effects in the infant. A crucial regulatory note is directed toward individuals identified as ultra-rapid metabolizers, who face an increased risk of toxicity.

Overdose and Emergency Response

Overdose and when to seek help

Overdose involving Algicalm (Codeine) is officially documented to present with severe depression of the central nervous system and the respiratory drive. Manifestations requiring immediate attention include slow, shallow, or difficult breathing, along with profound sedation, excessive drowsiness, and impaired consciousness. Clinically, this can rapidly progress to life-threatening outcomes, including respiratory arrest, coma, and death, which defines the severity classification used by regulatory authorities.

Accidental ingestion, particularly by children, is documented as a risk for fatal overdose. Regulatory documentation also identifies individuals who are CYP2D6 ultra-rapid metabolizers as being at increased risk for life-threatening respiratory depression. Furthermore, combining Codeine with other Central Nervous System depressants increases the documented risk for profound sedation, coma, and death.

Official regulatory instructions mandate that caregivers or patients seek emergency medical help immediately upon suspicion of overdose. This urgent action is required if signs such as severe sleepiness, confusion, or compromised breathing are observed. The management of overdose involves the use of an opioid antagonist, such as Naloxone, which is indicated as an emergency reversal measure, but is not a substitute for continuous, professional medical care and surveillance.

Therapeutic Uses of Algicalm (Codeine)

What Algicalm (Codeine) Treats: Main Uses and Benefits

Algicalm is relevant for symptomatic relief across two distinct domains: pain management and cough suppression. It is relevant when supportive symptom management is appropriate and where symptoms of discomfort are not adequately managed by non-opioid medications. The primary clinical indications for codeine are the relief of pain and the reduction of coughing.

Relevant Symptom Contexts

Primary Symptom Application Context Therapeutic Benefit
Moderate Pain Acute injury, post-procedure recovery Supports general well-being during symptomatic periods
Persistent Cough Post-infectious, dry, non-productive Assists with maintaining functional stability

The medication is commonly considered relevant for conditions presenting with acute episodes and involving episodic or fluctuating manifestations, such as pain following minor trauma or dental procedures, and persistent, dry coughing fits. Algicalm provides support that helps ease the overall symptom burden, contributing to improved day-to-day comfort during symptomatic periods. Its supportive role is relevant in specialized care settings where symptom stabilization may be important.

Management of Acute Moderate Pain and Irritating Cough

This domain is relevant for managing pain intensity that is moderate, applying to symptoms related to physical discomfort associated with acute or episodic changes. It is applied across domains where additional symptomatic support is needed. It offers symptomatic relief that may help patients cope more steadily with difficult episodes and assists with maintaining functional stability during phases of increased distress or discomfort.

Regulatory References

  1. NIH MedlinePlus overview

Eligibility and Restrictions for Use

The eligibility for Algicalm (Codeine) is strictly defined by official regulatory bodies based on age, metabolism, and pre-existing physiological conditions. Its use is limited to specific patient groups and is prohibited for others due to the risk of serious complications.

Absolute Restrictions (Cannot Use)

Algicalm is contraindicated and must not be used by several populations, primarily due to the risk of life-threatening respiratory depression. This absolute prohibition applies to:

  • All children younger than 12 years of age.
  • Adolescents younger than 18 years following tonsillectomy or adenoidectomy.
  • Patients known to be ultra-rapid metabolizers of codeine (CYP2D6 polymorphism).
  • Patients with significant respiratory depression, acute or severe bronchial asthma, or known hypersensitivity to codeine.
  • Patients with gastrointestinal obstruction (e.g., paralytic ileus) or those taking Monoamine Oxidase Inhibitors (MAOIs).

Conditional Use (Restricted Populations)

Use is permitted only with specific regulatory precautions for:

  • Women who are breastfeeding (use is not recommended).
  • Women who are pregnant (prolonged use carries the risk of Neonatal Opioid Withdrawal Syndrome in the infant).
  • Adolescents aged 12 to 18 years with a high risk for breathing problems (use is not recommended).
  • Older adults and patients with hepatic or renal impairment (must be used with caution due to altered clearance).

What should I know about interactions with other medicines?

The official interaction profile for Algicalm (Codeine) is primarily structured around its pharmacokinetic alterations and pharmacodynamic additive effects as documented in regulatory labeling. The medicine is contraindicated in several specific circumstances, including use in all children younger than 12 years of age and in adolescents under 18 years of age following tonsillectomy and/or adenoidectomy. It is also prohibited for patients known to be CYP2D6 ultra-rapid metabolizers and for those taking Monoamine Oxidase Inhibitors (MAOIs), with a restriction period of 14 days after MAOI discontinuation.

Pharmacodynamic interactions are critical with Central Nervous System (CNS) Depressants (e.g., benzodiazepines, general anesthetics, alcohol). Co-administration may result in profound sedation, respiratory depression, coma, and death. Additionally, co-use with Serotonergic Drugs carries a documented risk of serotonin syndrome, and efficacy may be reduced with Mixed Agonist/Antagonist Opioids.

The drug is subject to metabolic interactions via Cytochrome P450 enzymes: CYP2D6 Inhibitors (e.g., fluoxetine) decrease the formation of the active metabolite (morphine), potentially reducing efficacy. Conversely, CYP3A4 Inhibitors (e.g., ketoconazole) may increase codeine exposure. Consumption of alcohol is strictly prohibited due to severe CNS depressive synergy, and Grapefruit Juice may increase codeine blood levels.

Mechanism of Action

Enzyme-Driven Prodrug Activation

Codeine functions as a prodrug, requiring mandatory transformation by the liver enzyme Cytochrome P450 2D6 (CYP2D6) to yield its primary active metabolite, morphine. This domain, relying on enzyme-mediated signaling, is fundamental because the magnitude of the downstream physiological effects is strictly proportional to the rate and completeness of this metabolic conversion.

Central Opioid Receptor Agonism

The active metabolite acts as a full agonist on the mu-opioid receptor (MOR), a G-protein coupled receptor in the spinal cord and brain. This binding initiates an inhibitory molecular cascade that promotes neuronal hyperpolarization and blocks the release of excitatory nociceptive neurotransmitters (e.g., Substance P). This mechanism directly modulates nociceptive signaling pathways, contributing to the modulation of nociceptive signal transmission.

Brainstem Reflex Pathway Modulation

Codeine also engages a separate mechanism by modulating the cough center located in the medulla oblongata. By activating MORs in this area, the drug acts to suppress the activity of the central reflex circuit. This targeted adjustment of brainstem pathways elevates the threshold required to initiate a cough, resulting in central suppression of the reflex.

Dosage and Administration Information

How to Use Algicalm (Codeine)

This section describes the administration and dosage protocols for Algicalm, maintaining a focus strictly on usage patterns.


Administration Scope

Instruction Official Administration Guideline
Route of administration The established route of administration is oral, typically using tablet or liquid solution dosage forms.
Dosing schedule The standard adult single dose for analgesia generally ranges from 15 mg to 60 mg. The maximum recommended intake over 24 hours can be 360 mg, though it is restricted to 240 mg in certain jurisdictions.
Frequency pattern Dosing is prescribed on an as-needed (PRN) basis, with subsequent doses generally permitted after a minimum interval of four to six hours.
Timing in relation to meals The medicine may be taken independently of food; a meal does not significantly alter the absorption profile.
Preparation requirements For oral solution forms, a calibrated measuring device (syringe or cup) must be utilized for dose measurement; household spoons are not appropriate.
Age-group rules The use of Codeine is not recommended in children under 12 years of age. Dosing for older adults should be initiated with a lower dosage than the standard adult range.
Course duration constraint Opioid therapy is advised to be limited to the shortest duration possible. The use of Codeine for pain relief is further constrained to a maximum of 3 days.

Use Protocol Summary

The usage protocol establishes a standardized, intermittent approach, defining the method and limits of administration. This structure dictates that the drug must be taken orally using a precise, measured dose within the 15 mg to 60 mg range. The frequency is restricted by a mandatory time interval between doses, and the overall course of use must be short-term and not exceed established maximum daily limits.

Recent Clinical Evidence

Recent Clinical Evidence

Phase 3 Trials: Evaluation and Study Design

Clinical research has explored the substance's effects in adults with pain, with a focus on both short-term and long-term data collection. Key trials evaluated codeine, often in combination with non-opioid analgesics like acetaminophen or ibuprofen.

Core Research Findings

  • Monotherapy and Combination Evaluation: Initial studies examined whether codeine alone or combined with other drugs resulted in a reduction in various types of pain, including acute dental and postoperative pain. Evidence suggests that the addition of codeine to non-opioids may provide moderate benefit for some individuals, though findings regarding superiority over non-opioids alone are mixed or limited.
  • Mechanism of Action: Studies have investigated that codeine acts as a prodrug, meaning its analgesic properties depend on its conversion to morphine by the liver enzyme CYP2D6. This metabolic pathway exhibits genetic variability; individuals who are ultra-rapid metabolizers may be at higher risk for adverse events, while poor metabolizers may experience less pain relief.

Adverse Events and Data Interpretation

Studies assessed the frequency of adverse events over various treatment periods. Common observed risks across trials included nausea, vomiting, drowsiness, dizziness, and constipation.

  • Safety Profile: Due to the risk of respiratory depression and other serious adverse events, codeine is not recommended for pain relief after surgery to remove tonsils or adenoids in children. Furthermore, its use carries a risk of tolerance, physical dependence, and substance use disorder with long-term use.
  • Neutral Data Summary: When reviewing the evidence, the balance of observed effects, including efficacy data and adverse event reports, is carefully considered to determine its appropriate use in pain management.
  • Patient Discussion: Individuals may consider discussing the evidence, including the observed effects and risks, with a healthcare professional before making any treatment decision.

Frequently Asked Questions (FAQ)

Common questions about Algicalm (Codeine) (FAQ)

Q: Is Algicalm (Codeine) the same as plain Codeine?

Algicalm is a specific name for a product containing codeine. According to official product information, codeine is often combined with other non-opioid active ingredients, such as acetaminophen or ibuprofen, for a comprehensive formulation. The term 'plain codeine' generally refers to codeine used alone, while Algicalm may represent a specific combination.

Q: How quickly does Algicalm (Codeine) start to work?

According to regulatory documents, the pain-relieving effects of codeine usually reach their strongest point about two hours after taking the medicine. The typical duration of effect is consistent with the regulatory minimum dosing interval of four to six hours.

Q: What happens if I miss a scheduled time for Algicalm (Codeine)?

If you are taking Algicalm on an 'as-needed' basis (PRN), there are generally no special instructions for a time when you did not need the dose. Official guidance typically suggests that if a scheduled dose is missed, the patient should return to the regular schedule without taking a double dose.

Q: Are there any specific foods to avoid while taking Algicalm (Codeine)?

Regulatory documents strictly advise against consuming alcohol while taking codeine due to the severe risk of increased central nervous system (CNS) depression. Furthermore, some official information includes a warning regarding the consumption of large amounts of Grapefruit Juice, noting that it may affect the levels of codeine in the body.

Q: Is it safe to take Algicalm (Codeine) with herbal supplements?

Official drug information advises caution regarding certain herbal products that may interact with codeine. Specific examples of supplements mentioned in official precautions include St. John’s wort and tryptophan. All supplements should be reviewed against the full interaction profile.

Q: Is Algicalm (Codeine) a type of opioid?

Yes, according to official classification, the active ingredient, codeine, belongs to a class of medications known as opiate (narcotic) analgesics. This classification is based on its chemical structure and its ability to relieve pain by acting on opioid receptors in the body.

Q: How does Algicalm (Codeine) compare to other common pain relief options in official descriptions?

Official descriptions indicate that codeine should be reserved for short-term pain relief in circumstances where other non-opioid options, such as acetaminophen or ibuprofen, have not provided adequate relief. Regulatory focus is often placed on its use in specific situations like acute dental or postoperative pain.

Q: Does Algicalm (Codeine) show up on a drug test?

Yes, the body metabolizes codeine into morphine, and both compounds can typically be detected in standard drug screenings. Official data indicates that these opiates can generally be detected in urine for about two to three days following the last dose.

Q: What if Algicalm (Codeine) doesn't seem to be working for me?

The effectiveness of Algicalm is highly dependent on how the body converts it to its active form in the liver. Official warnings indicate that individuals classified as poor metabolizers due to a genetic difference may not convert the drug efficiently, which can result in less pain relief than expected.

Q: What is the official purpose of Algicalm (Codeine) according to regulatory bodies?

According to regulatory bodies, the official purpose of codeine is the relief of mild to moderately severe pain. It is also officially indicated and used as an antitussive, which is a medication designed to help relieve cough.

Q: Is Algicalm (Codeine) safe for people with kidney issues?

Regulatory information states that codeine should be used with caution in patients with severe impairment of renal (kidney) function. The drug information notes that some clinical guidelines indicate that codeine may be unsuitable for individuals with significant kidney impairment due to the risk of active drug component accumulation.

Q: Is Algicalm (Codeine) safe for people with liver issues?

According to official product labels, codeine should be prescribed with caution in patients with severe impairment of hepatic (liver) function. This is because the liver is essential for converting codeine into the active metabolite that provides pain relief.

Q: Do studies suggest Algicalm (Codeine) works better for certain types of pain?

Studies have primarily focused on the drug's effectiveness for acute dental pain and postoperative pain, often when used in combination with other non-opioid analgesics. Official documents provide no comparison stating that the drug works better for one type of pain versus another, but rather describe the specific contexts of the research.

Q: What is the concern about taking Algicalm (Codeine) if I have a history of breathing problems?

Official warnings note that patients with a history of asthma, chronic pulmonary disease (COPD), or any condition causing slowed breathing may have increased risks. These conditions can increase the risk of serious side effects, specifically respiratory depression (severely slowed or stopped breathing).

Q: Why is the speed of metabolism important when using Codeine?

The speed of metabolism is crucial because codeine must be converted to its active form, morphine, in the liver. A conversion that is too fast can lead to excessively high morphine levels and an increased risk of serious side effects. Conversely, a conversion that is too slow can result in less pain relief.

Q: Does the classification as a controlled substance mean Algicalm (Codeine) is highly dangerous?

According to regulatory descriptions, the controlled substance classification indicates that the drug has a high potential for abuse, misuse, and physical dependence. This classification primarily addresses the drug’s potential for dependence, rather than classifying it as universally 'highly dangerous' compared to all other medications.

Q: Can Algicalm (Codeine) be crushed or split?

Regulatory guidance for solid dosage forms typically states that the tablet should be swallowed whole. Crushing or splitting the tablet is usually not advised unless the manufacturer provides explicit instructions for that specific product, as physical manipulation can affect the proper delivery and safety profile.

Q: Is it possible for Algicalm (Codeine) to stop working over time?

Official safety information indicates that if codeine is used for long periods, the body may develop a phenomenon known as tolerance. This means that larger amounts of the medicine may be needed over time to achieve the same initial pain-relieving effects.

Q: What happens if Algicalm (Codeine) interacts with a blood thinner?

Regulatory documents for codeine-containing products caution patients who are taking anticoagulants (blood thinners) such as warfarin about a potential risk of increased bleeding. Official documents note that any co-administration is a scenario that requires careful medical review.

Q: Is Algicalm (Codeine) recommended for use during pregnancy in official sources?

Official regulatory guidance states that long-term use is not recommended during pregnancy, especially near the time of delivery, due to the potential for the infant to develop Neonatal Opioid Withdrawal Syndrome (NOWS). Use should be for the shortest duration possible.

Q: Is Algicalm (Codeine) recommended for use while breastfeeding in official sources?

Official product information contains a strong warning against taking codeine while breastfeeding. This is due to the risk that small amounts of codeine and its active metabolite, morphine, pass into breast milk and could cause serious adverse effects, such as breathing problems, in the infant.

Q: Does Algicalm (Codeine) interact with antidepressants?

Yes. Official warnings state that codeine should not be taken with Monoamine Oxidase Inhibitors (MAOIs), or within 14 days of stopping them. Co-use with other serotonergic drugs, which includes many antidepressants, also carries a documented risk of developing Serotonin Syndrome.

Q: Is Algicalm (Codeine) used to treat headaches?

Codeine alone is officially indicated for general mild to moderately severe pain. However, it is often formulated in combination products with other analgesics (such as acetaminophen) that are specifically prescribed and used for the relief of headaches.

Q: Do clinical trials focus on short-term or long-term use of Algicalm (Codeine)?

According to official guidelines, clinical trials and regulatory documents support codeine for short-term use only. This restriction is based on the risks of tolerance, dependence, and other serious adverse effects associated with prolonged use.

Q: Are there specific warnings about Algicalm (Codeine) and mental health conditions?

Official drug labels note that the risk of addiction, abuse, or misuse is increased in patients with a personal or family history of mental illness, such as major depression. Official documents note that individuals with this history may require intensive medical review.

Q: Can Algicalm (Codeine) be used before surgery?

Official warnings caution against use before or after surgery, noting that this scenario requires full medical review with the surgical team. The drug's effects, like drowsiness, may obscure signs that are crucial for diagnosis, particularly in acute abdominal conditions.

Q: Are there different forms of Algicalm (Codeine) available, and what are their official uses?

Codeine is available in different dosage forms, including immediate-release tablets, oral solution (liquid), and syrup. The official uses are consistently for pain relief and cough suppression, although specific formulations may be tailored to one indication over the other.

Q: Does Algicalm (Codeine) have a high risk of interaction with cold and flu remedies?

Yes, codeine carries a high risk of interaction with many cold and flu remedies because these products often contain ingredients that are Central Nervous System (CNS) Depressants (e.g., antihistamines or alcohol). Combining them can result in profound sedation and respiratory depression.

How should Algicalm (Codeine) be stored and disposed of?

Official Storage and Disposal Requirements

The storage and disposal of Algicalm (Codeine) products are strictly regulated due to their status as an opioid and controlled substance, requiring specific conditions to maintain stability and prevent misuse.

Storage Conditions

Requirement Official Rule
Temperature Store at Controlled Room Temperature, 20 C to 25 C (68 F to 77 F).
Protection Keep the container tightly closed and away from excess heat and moisture.
Child Safety Mandatory secure storage; keep the product out of the sight and reach of children at all times.

Disposal Instructions

Official guidelines prioritize returning unused or expired codeine to an authorized drug take-back program. If a take-back option is unavailable, the medicine must be disposed of in the household trash following a specific procedure: mix the drug with an undesirable substance, seal it in a container, and then discard it. Do not flush the product unless specifically advised by regulatory labeling.

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

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