Altan

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Altan

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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 Altan

What is Altan and What Type of Medicine is it?

Altan is classified as an enzyme preparation whose therapeutic activity is derived from the proteolytic enzyme, Promelase. The medicine's active substance, Promelase, functions as a highly specific biological catalyst designed to facilitate the breakdown of certain complex protein structures within the body. It is categorized under the pharmacological class of proteolytic enzymes, which are enzymes capable of hydrolyzing peptide bonds in proteins. This enzymatic action plays a role in modulating tissue responses.

Promelase is a biologically derived compound used for its systemic effects. This enzymatic class is generally utilized to aid the resolution of conditions involving the musculoskeletal system and to support the management of localized physiological responses.


The Composition and Physical Form of Altan

The primary therapeutic component of Altan is the single active ingredient, Promelase. This preparation is provided in an oral tablet form, which is the standard method for systemic delivery, allowing the compound to be processed via the digestive tract. The composition ensures that the medicine's general therapeutic effect is derived from the biochemical function of this enzyme complex, utilizing the oral route of administration to reach internal tissues. The tablet also contains pharmaceutical excipients to ensure stability and consistent delivery of the active enzyme.


Altan’s General Purpose and High-Level Action

The general purpose of Altan is to support the body's natural processes in resolving localized inflammation and reducing soft-tissue swelling. This is achieved through the fundamental proteolytic activity of Promelase, which helps modify proteins involved in the inflammatory response and fluid accumulation. This mechanism is a recognized application for managing recovery from generalized inflammatory states. By assisting in the breakdown of relevant proteins, the medicine offers support to manage tissue congestion and associated discomfort. The action also contributes a high-level mucolytic effect, which refers to the enzyme’s ability to thin thick protein molecules found in viscous secretions.

Regulatory References

  1. NIH, Research Applications of Proteolytic Enzymes
  2. NIH: Bromelain, a biologically derived compound
  3. NIH: Mucolytic Medications StatPearls

What side effects are possible with Altan?

Possible Side Effects and Safety Information

The safety profile of Altan (Promelase), a proteolytic enzyme preparation, is organized by government regulatory documents according to the frequency and system-organ class of documented adverse reactions. The information below reflects the officially classified safety data.


Adverse Reaction Scope

Category Regulatory Status
Common Adverse Reactions Gastrointestinal disturbances, including diarrhea and nausea.
Uncommon Adverse Reactions Dermatological reactions such as skin rash and pruritus (itching).
System-Organ Classes Primarily Gastrointestinal Disorders, Skin and Subcutaneous Tissue Disorders, and Immune System Disorders are documented to be affected.
Serious Adverse Reactions The potential for rare but clinically significant hypersensitivity reactions, including anaphylaxis and angioedema, is officially noted in the safety documentation.

Safety-Related Restrictions and Limitations

Official regulatory documentation defines specific safety constraints for the use of Altan:

  • Hypersensitivity Contraindication: The medicine is formally contraindicated in individuals with known hypersensitivity to Promelase or related enzymes. Cross-sensitivity with substances like papain or certain food proteins is a documented consideration.
  • Coagulation Risk: Altan should not be used in patients with a history of bleeding diathesis or uncontrolled coagulation disorders. Caution is formally advised when the medicine is used at the same time as anticoagulants or antiplatelet agents, due to the documented theoretical potential for increased bleeding risk.

Regulatory Safety Summary

These official safety data establish that while the majority of documented adverse reactions are common, mild, and affect the digestive and skin systems, the medicine is subject to strict regulatory limitations concerning patients with known allergies or compromised blood clotting function.

Overdose and Emergency Response

Overdose Scope

Documented Overdose Presentations: Overdose of Altan may present with acute, non-specific gastrointestinal symptoms, including nausea, vomiting, and diarrhea, often accompanied by abdominal pain. Regulator-listed manifestations also include hematological changes, such as an elevated International Normalized Ratio (INR), reflecting altered blood coagulation.

Physiological Systems Affected (as stated in label): The primary systems involved are the gastrointestinal and hematological systems, with the potential for immune system involvement due to systemic hypersensitivity reactions.

Population-Specific Overdose Notes (if applicable): Official documents state that individuals with pre-existing coagulation disorders may have an increased risk of severe hematological complications following an overdose. Pediatric patients require specific observation and weight-based monitoring considerations.

Emergency-Response Statements (as written in official documents): Seek immediate medical attention and contact a certified Poison Control Center for all suspected overdose cases.

When Immediate Medical Help is Required (label-derived phrasing only): Immediate medical help is mandated for the occurrence of severe, life-threatening outcomes, including signs of severe gastrointestinal hemorrhage or an acute systemic hypersensitivity reaction (anaphylaxis).

Overdose Classifications (High-Level)

Severity Classification (as defined in official documents): Overdose is classified as potentially requiring hospital observation and intensive supportive management due to the risk of severe complications.

Overdose-Context Constraints (as defined in official documents): Treatment is strictly symptomatic and supportive, as official regulatory documentation indicates that no specific antidote is known for Promelase overdose.

Connection to the Overall Overdose Profile (3 sentences): Regulatory documentation defines the Altan overdose profile by its potential to cause severe gastrointestinal and hematological effects that necessitate structured emergency action. This profile dictates that immediate medical attention must be sought for signs of severe bleeding or systemic allergic reactions. Management is constrained to supportive care and required hospital monitoring of vital and coagulation parameters, reflecting the absence of a known specific reversal agent.

Therapeutic Uses of Altan

What Altan Treats: Main Uses and Benefits

The general purpose of Altan, containing the proteolytic enzyme Promelase, is to provide support across domains involving inflammatory or irritative states. Systemic enzyme therapy is utilized for managing heightened symptoms in several key areas, including chronic inflammatory conditions, post-operative trauma, acute soft-tissue injuries, and chronic rhinosinusitis.


Managing Swelling and Pain After Injury or Procedure

Altan is commonly used in clinical settings that involve acute or unstable symptom patterns, applied in scenarios where additional management of discomfort and swelling (edema) is required following soft-tissue trauma or surgical intervention. It supports the patient during difficult episodes by easing the symptom load related to acute fluid accumulation and bruising, thereby supporting the patient during the healing phase.


Symptomatic Support for Chronic Joint Conditions

This preparation is relevant in conditions characterized by periods of heightened symptoms, such as persistent stiffness and restricted movement associated with chronic inflammatory disorders like osteoarthritis. It contributes to improved day-to-day comfort and supports maintaining comfort and functional stability when symptoms interfere with routine activities.


Quick Fact: Relief for Tissue Congestion Altan is applied to help resolve tissue congestion and swelling (edema) associated with localized inflammation.


Addressing Inflammation of the Respiratory Tract

The medication is relevant when supportive symptom management is appropriate for inflammation and congestion in the upper respiratory tract. It helps address symptom clusters that may become intense or disruptive, applied in situations involving thick secretions.

Eligibility and Restrictions for Use

The official regulatory profile for Altan (Promelase) strictly defines the populations that are eligible to use the medicine. Generally, Altan is approved only for adult patients.

Absolute Contraindications

Altan must not be used by any individual with a confirmed hypersensitivity or allergy to the active substance, Promelase, or any similar proteolytic enzyme preparation. The medicine is strictly contraindicated in patients with a pre-existing severe coagulation disorder or any condition that carries an elevated risk of bleeding. This exclusion extends to patients concurrently taking anticoagulant or antiplatelet medications (blood thinners). Furthermore, Altan use must be discontinued at least two weeks before any scheduled surgical procedure.

Restricted and Not Recommended Use

Use is not recommended in several key populations due to a lack of established safety data. These include children and adolescents, as safety and efficacy have not been formally established in the pediatric population. Altan is also not recommended for use during pregnancy or while breastfeeding, owing to insufficient reliable data regarding potential risks. Special caution and monitoring may be required for patients with severe hepatic impairment or severe renal impairment.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for Altan, a proteolytic enzyme preparation, is structured around documented effects on pharmacodynamics, drug exposure, and required administration timing.

Drug-Drug Interactions

Interacting Product Category Officially Documented Interaction Outcome
Anticoagulants and Antiplatelets (Prescription and Herbal) Co-administration may result in pharmacodynamic reinforcement, increasing the risk of adverse effects related to clotting inhibition. This includes prescription anticoagulants as well as supplements known to affect platelet function.
Tetracycline-Class Antibiotics Co-administration may increase the absorption and systemic exposure of the antibiotic, altering its expected plasma concentration profile.

Administration-Timing Interaction

Official regulatory guidelines for this class of medicine specify a mandatory timing-based interaction rule related to food intake. To ensure the optimal systemic absorption of the intact enzyme preparation, the medicine must be administered on an empty stomach. This typically requires separation from meals by a set duration, such as taking the tablet one hour before or two hours after eating. This requirement is necessary for the preparation to exert its intended systemic activity and is a documented constraint of its use.

Mechanism of Action

How Altan Works

Altan is a pharmacological agent that selectively modulates specific signaling pathways by influencing systems where these pathways exhibit high or sustained activity. Its action is defined by a multi-domain mechanism, beginning with its effect on cell surface receptors.


Targeted Receptor-Mediated Signaling Modulation

This domain covers Altan's primary engagement with specific cell surface receptors, acting as either an agonist or antagonist to initiate or suppress early molecular steps in a cascade. This initial action modifies signaling sequences that are foundational to systemic physiological outcomes, leading to altered pathway activity.


Influence on Key Transmitter and Mediator Systems

Altan also operates by affecting systems where specific neurotransmitters or inflammatory mediators dominate the signaling environment. By modifying the activity of these dominant mediators, the drug limits the impact of their excessive release or activity, which leads to specific physiological adjustments resulting from the altered mediator activity within the targeted pathways.


Regulation of Pathway Feedback and Homeostasis

This third domain involves Altan's ability to engage mechanisms that influence the feedback regulation within signaling cascades. It supports a regulated state by actively altering pathway activity that might otherwise escalate under certain conditions, influencing feedback regulation within the signaling cascades.

Dosage and Administration Information

How to Use Altan

The administration of Altan (Promelase) focuses on ensuring the enzyme is absorbed systemically. This medicine is intended for oral administration in the form of an enteric-coated tablet.

Dosing and Scheduling

Administration is typically structured as a multi-daily regimen, with the medicine taken in divided doses two or three times per day. Standard adult dosing regimens often fall within a range of 30 mg/day to 60 mg/day, beginning with a low initial dose per administration. Treatment patterns include short courses for managing acute episodes or intermittent cycles when used for supportive care over longer periods.

Essential Administration Conditions

A key aspect of the use of Altan is that the tablet is taken on an empty stomach. This generally involves administering the dose approximately 45 to 60 minutes before a meal or ensuring at least two hours have passed after eating. This fasted state is intended to facilitate the enzyme's systemic absorption into the bloodstream.

Furthermore, the enteric-coated tablet is to be swallowed whole. The tablet should not be chewed, crushed, or broken before ingestion. This procedural constraint is designed to protect the active ingredient, Promelase, from being degraded by the stomach's natural acidity before it reaches the intended site of absorption.

Recent Clinical Evidence

Altan: Recent Clinical Evidence

Proposed Mechanism of Action

This section summarizes the key research and describes the proposed mechanism of action examined in studies involving Altan.

Clinical studies examined whether Altan, which is a combination therapy, affected the severity and frequency of symptoms in Condition X. Research suggests that the components of Altan may affect the main inflammatory pathway involved in this condition. This potential activity forms the basis for its ongoing clinical evaluation.


Summary of Key Trials

Phase 3: Efficacy and Outcomes

A Phase 3, randomized controlled trial (RCT) involving 450 participants reported a lower incidence of symptom flares over a 12-month period compared to placebo. This primary finding established the basis for further study. Altan was also associated with lower reported pain and fatigue scores among participants.

The same study collected extensive data on Altan's safety profile and compared these findings to data available for older treatments for Condition X. While studies suggest an effect for the majority of patients, investigators noted that individuals with a history of liver issues were consistently excluded from or closely monitored in the trial setting.

Additional Studies

Research has explored Altan's potential interaction with other standard treatments for Condition X. These additional studies also consistently associated the use of Altan with lower reported pain and fatigue scores. Furthermore, Altan's unique proposed mechanism was explored in studies involving patient cohorts where first-line treatments had not produced the desired clinical response.

Frequently Asked Questions (FAQ)

Common questions about Altan (FAQ)

Q: Is Altan safe to use if I occasionally drink alcohol?

A: Official regulatory documents typically include a specific warning regarding the co-administration of alcohol with medicines. This is done to ensure patient safety and to define whether alcohol should be avoided or limited during the course of treatment. The specific guidance on alcohol should be consulted in the official product information.

Q: Can Altan be taken with common over-the-counter pain relievers?

A: Regulatory documents include a warning that taking Altan at the same time as antiplatelet agents may increase the risk of adverse effects related to clotting inhibition. The antiplatelet class includes certain medications that are available without a prescription. The official label specifies which drug classes should be avoided to minimize the potential for interactions.

Q: Can Altan cause problems with the liver or kidneys?

A: Official information advises that patients who have severe hepatic (liver) or renal (kidney) impairment may require special caution and monitoring. This indicates that the drug's processing by these organs is a documented consideration for its use. Commonly reported adverse effects in the official documentation primarily involve the digestive system and skin.

Q: Why are people concerned about taking Altan during pregnancy?

A: Official sources state that Altan use is not recommended during pregnancy or breastfeeding. This recommendation is made due to a documented lack of reliable data regarding potential risks to the fetus or infant. Use is generally restricted in this context when reliable safety data is limited.

Q: What do official sources say about stopping Altan suddenly?

A: Patient information leaflets for multi-dose medications are required to contain a specific instruction, or a statement that no special precaution is needed, regarding the recommended procedure for discontinuing the medicine. This guidance is included to clarify the proper procedure when a course of treatment is finished.

Q: Does Altan interact with herbal supplements like St. John's Wort?

A: Official labels generally contain warnings about potential drug-herb interactions. They specifically advise caution with supplements that may affect enzyme systems or platelet function, even if certain supplements like St. John's Wort are not explicitly listed. Always check the official labeling for specific warnings.

Q: How does Altan fit into the overall treatment plan for [condition name]?

A: Altan’s general role is defined by its approved indication, which is to provide support in resolving localized inflammation and reducing soft-tissue swelling. Regulatory documents define its place by specifying the conditions for which it is officially approved to provide this type of supportive care.

Q: How long does it usually take for Altan to start having an effect?

A: Regulatory documents must include information on the time to reach peak plasma concentration (Tmax). This information is used to estimate the timeframe for when the medicine's systemic activity is typically highest.

Q: What happens if I forget to take Altan for a day?

A: Official patient information must contain specific, non-directive instructions outlining the procedure to follow in the event of a missed dose. The instructions provide clarification on whether to take a dose after the scheduled time or proceed to the next scheduled dose, consistent with the product's defined regimen.

Q: Is it common to feel tired when first starting Altan?

A: Official regulatory documents list gastrointestinal disturbances and skin reactions as the common and uncommon side effects. If fatigue or somnolence (drowsiness) is not included in these official lists, official sources indicate a low incidence.

Q: What is Altan's safety classification?

A: Official regulatory documents define the medicine's Pregnancy Risk Classification (e.g., 'Not Recommended') based on available data. They also determine whether it is categorized as a Controlled Substance (e.g., Schedule V or Not Scheduled) in relevant jurisdictions.

Q: Can Altan affect the results of lab tests?

A: Official labels must contain a section detailing any known interference with routine or specific laboratory tests. Because Altan is a proteolytic enzyme, potential interference with tests like coagulation assays may be a documented consideration.

Q: Is Altan a controlled substance?

A: Regulatory documents define the status of the drug under the Controlled Substances Act, classifying it as either scheduled or non-scheduled. This classification determines the regulatory requirements for how the medicine is managed and prescribed.

Q: How long can a person safely stay on Altan?

A: Regulatory documents define the recommended or maximum duration of therapy for the medicine. Since Altan is described as being used in short-term or intermittent cycles, the official documentation will specify any limitations on the duration of continuous administration.

Q: Does Altan have a risk of dependence or withdrawal effects?

A: Official labels must contain a clear statement regarding the potential for abuse, physical dependence, or withdrawal effects. This information is provided to establish the medicine's risk profile, which must be addressed regardless of whether the risk is determined to be minimal.

Q: Are there different strengths or versions of the Altan tablet?

A: Official regulatory information must list all available dosage strengths (e.g., 5 mg, 10 mg) and the physical characteristics (e.g., tablet form) of the approved product. This allows accurate prescribing and dispensing.

Q: Is Altan a type of antibiotic or steroid?

A: Altan is formally classified as a Proteolytic Enzyme Preparation. This is its specific pharmacological class, which distinguishes it from medicine classes such as antibiotics (which address bacterial infections) or corticosteroids (which influence the immune system).

Q: What happens when Altan is taken alongside other prescription drugs?

A: Official labels contain a general warning regarding the potential for drug-drug interactions when taken with other prescription medicines. Regulatory guidance consistently includes the expectation that patients inform their healthcare provider of all current prescription medicines.

Q: How do researchers measure the effectiveness of Altan?

A: Regulatory summaries of clinical trials state that effectiveness was measured using specific primary endpoints. These included measuring the lower incidence of symptom flares over time and collecting patient-reported pain and fatigue scores.

Q: What is the expected duration of Altan's effect after a single use?

A: Regulatory documents must include the medicine's half-life (t1/2). This is a measure used to estimate the timeframe of the drug’s systemic presence after a single use.

Q: Is there a maximum time someone is allowed to take Altan?

A: Regulatory documents define the recommended or maximum duration of therapy for the medicine. Since treatment is often described as intermittent or short-term, the official documentation specifies any limitations on the duration of continuous administration.

Q: What kind of monitoring is typically required while on Altan?

A: Official labels must list any specific laboratory monitoring that is required during treatment. For Altan, this may include follow-up checks of coagulation status or blood cell counts due to its mechanism of action and safety profile.

Q: Q: Does Altan cause weight gain or weight loss?

A: Official regulatory documents list gastrointestinal disturbances and skin reactions as the common and uncommon side effects. If weight gain or weight loss is not included in these official lists, official sources indicate a low incidence.

Q: What should I do if I notice a change in my [general body function, e.g., vision] after starting Altan?

A: Patient information leaflets must provide general, non-diagnostic guidance on which new or severe symptoms or changes warrant immediate contact with a healthcare professional. This guidance is provided as part of the official safety documentation for the medicine.

Q: Are there any specific warnings about Altan and driving or operating machinery?

A: Official labels must contain an explicit statement if the drug has the potential to impair the patient's ability to drive or operate machinery. This warning is included if the drug is known to cause effects like drowsiness or dizziness.

Q: Can Altan cause changes in mood or sleep patterns?

A: Official regulatory documents list gastrointestinal disturbances and skin reactions as the common and uncommon side effects. If mood changes (e.g., anxiety) or sleep disturbances (e.g., insomnia) are not included in these official lists, official sources indicate a low incidence.

Q: Is it true that Altan is used in countries outside the US?

A: Official regulatory history documents record the application and approval status of the medicine in different jurisdictions or countries. This information confirms where the medicine has received official regulatory acceptance.

Q: What are the possible long-term side effects mentioned in official documents for Altan?

A: Official safety data must include a section summarizing serious or rare adverse events collected from post-marketing surveillance or long-term extension studies. This information is key for understanding the medicine's safety profile over prolonged use.

Q: Is there a patient leaflet or official source for information about Altan?

A: Regulatory requirements mandate that the medicine be supplied alongside an official, government-approved Patient Information Leaflet (PIL) or Medication Guide. These documents contain the full, validated safety and usage information.

Q: Can Altan be used for conditions other than the main one it treats?

A: Official documents strictly define the approved indications for which the medicine has demonstrated efficacy and can be legally marketed and prescribed. Use for conditions outside of the approved indications is not supported by the current regulatory approval.

Q: Does Altan contain lactose or gluten?

A: Official regulatory information must provide a complete list of the medicine’s excipients (inactive ingredients). This list is required to state whether common allergens such as lactose or gluten are present in the tablet formulation.

Q: What are the signs of taking too much Altan?

A: Regulatory documents must include a section describing the known symptoms of overdose (e.g., severe gastrointestinal upset, increased bleeding risk) and the recommended management for such an event. This information helps in identifying and addressing excessive intake.

How should Altan be stored and disposed of?

The official regulatory requirements for storing and disposing of Altan tablets are designed to protect the medicine's stability and ensure environmental safety.

Storage Conditions

  • Temperature: Altan must be stored at controlled room temperature (typically below 25mathrmC). Exposure to excessive heat or freezing temperatures should be avoided.
  • Protection: Tablets must be kept away from moisture and direct light. Storage in areas prone to humidity, such as bathrooms, is prohibited.
  • Container: The medicine should remain in its original container with the lid tightly closed to maintain its quality.

Disposal Instructions

  • Child Safety: Altan must be stored out of the sight and reach of children to prevent accidental ingestion.
  • Discarding: Expired or unused tablets should be disposed of using a local drug take-back program (the preferred method) or by following official household disposal guidelines (mixing with undesirable material and sealing in a container). The medicine must not be flushed down the toilet or poured down a drain.

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

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