Buvastin

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Buvastin

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 Buvastin

What is Buvastin?

Buvastin is a medicinal product containing the active ingredient Butamirate, a synthetic compound classified as a non-narcotic cough suppressant. It is used for the symptomatic management of non-productive coughs.

Property Description
Active ingredient Butamirate (Butamirate citrate)
Form Oral preparations (Syrup, drops, tablets)
Pharmacological class Antitussive (Cough Suppressant)
Common use Suppression of dry, non-productive cough
Origin Synthetic, Non-opioid

Buvastin: Identity and Classification as an Antitussive

Buvastin is the trade name for a medicine whose core component is Butamirate (Butamirate citrate), a substance categorized as an antitussive. This drug is characterized by its central action; it works on the cough center in the medulla oblongata to reduce the frequency and intensity of the involuntary coughing reflex. Its non-opioid nature allows it to function as a centrally acting agent without the chemical structure or associated risks of dependency found in codeine-related medicines.

Composition, Origin, and Available Forms

As a single-ingredient product, Buvastin’s therapeutic effect is derived from the Butamirate compound, which is synthesized for consistent purity and potency. The medicine is prepared for oral administration and is available in various dosage forms to suit different age groups, including syrup, pediatric drops, and solid forms like conventional and sustained-release tablets. Butamirate is classified pharmacologically as a cough modulator.

General Therapeutic Purpose of Butamirate

The overall purpose of Buvastin is to provide symptomatic relief by suppressing a dry, non-productive cough. The medicine is typically used for situations such as a cough persisting after a cold or an upper respiratory infection where mucus is not being produced. By diminishing the central reflex, the drug helps to reduce the physical discomfort, irritation, and exhaustion caused by continuous, non-mucus-producing coughing episodes. This action is intended for temporarily easing the burden of a persistent cough, allowing for better sleep and general comfort.

Regulatory References

  1. Butamirate NIH MeSH entry
  2. EMA EPAR Glossary

What side effects are possible with Buvastin?

Possible Side Effects and Safety Information

The official safety information for Buvastin outlines adverse reactions by system-organ class and frequency, ranging from very common to rare events, based on regulatory classifications (e.g., EMA/ICH frequency bands).

Serious Adverse Reactions and Conditions for Discontinuation

Certain serious events require the drug to be permanently discontinued upon occurrence, as specified in regulatory documents. These include:

  • Gastrointestinal Perforations: A tear or hole in the stomach or intestines, which may be fatal.
  • Severe Hemorrhage: Serious bleeding events, including gastrointestinal and central nervous system bleeding.
  • Arterial Thromboembolic Events (ATE): Events such as stroke, cerebral infarction, or myocardial infarction.
  • Hypertensive Crisis or Hypertensive Encephalopathy.
  • Reversible Posterior Leukoencephalopathy Syndrome (RPLS): A rare neurological disorder.
  • Wound Healing Complications requiring medical intervention.

Contraindications and Monitoring

The drug is contraindicated (must not be used) in patients with hypersensitivity to the drug or its components, patients with recent history of serious hemorrhage, or those who have unhealed major wounds. It is also contraindicated during pregnancy due to the risk of fetal harm.

Regulatory warnings and precautions require close monitoring for certain conditions:

  • Hypertension (High Blood Pressure): An increased incidence is noted, and blood pressure must be monitored and adequately controlled before and during treatment. Incidence may be dose-dependent.
  • Proteinuria (Protein in Urine): Requires monitoring, and treatment may be temporarily suspended if severe (e.g., ge 2 g/24 hours). Discontinuation is required if nephrotic syndrome occurs.
  • Wound Healing: Use is restricted for a specified time period (e.g., at least 28 days) before and after major surgery until the wound is fully healed.

Common Adverse Reactions

Adverse reactions officially classified as Very Common (occurring in ge 1/10 patients) frequently involve the cardiovascular, nervous, and general systemic areas. These documented reactions include headache, back pain, hypertension, hemorrhage (like epistaxis/nosebleeds), proteinuria, and dry or flaky skin. Other common adverse events may involve gastrointestinal disorders, nervous system disorders, and vascular disorders.

Population-Specific Safety

Official labeling notes a risk of ovarian failure in women of reproductive age, particularly when Buvastin is used in combination with certain chemotherapies. Use during pregnancy is strictly contraindicated.

Overdose and Emergency Response

Overdose and When to Seek Help

Official Manifestations of Overdose

Overdose of Butamirate (Buvastin) is officially associated with a cluster of signs and symptoms affecting multiple physiological systems. These documented manifestations include gastrointestinal effects such as nausea, vomiting, and diarrhea. Central nervous system involvement is described through the presence of drowsiness (somnolence) and dizziness. A potentially serious cardiovascular outcome documented in regulatory information is hypotension (low blood pressure).

Mandated Emergency Action

Due to the possibility of severe outcomes like hypotension, official labeling mandates specific actions when overdose is suspected or confirmed. Immediate medical attention or advice must be sought by contacting a doctor, a pharmacist, or the nearest hospital's poison unit. Standard emergency procedures should be followed immediately.

Management and Specific Antidote Status

The regulatory profile of Butamirate specifies that there is no known specific antidote available. Treatment is therefore reliant on symptomatic and supportive care. Management procedures described in official documents include intervention to reduce drug absorption, such as gastric lavage, the use of activated charcoal, and a saline laxative. Monitoring and treatment of vital signs is required as part of the supportive treatment regimen to manage the documented effects.

Therapeutic Uses of Buvastin

What Buvastin treats: main uses and benefits

Buvastin (Butamirate) is commonly used for the symptomatic treatment of dry, irritant cough. The medicine is relevant in situations involving certain distressing symptoms associated with non-productive coughing.

Symptomatic Relief of Irritative Dry Cough

The medication is generally used for managing symptoms related to inflammatory or irritative states that result in persistent, non-productive coughing. It helps address symptom clusters that may become intense or disruptive and is applied in addressing symptoms related to heightened physiological activity. This provides support that helps ease the overall symptom burden, particularly symptoms related to physical discomfort.

Support for Acute and Post-Infectious Cough

Buvastin is commonly used across conditions associated with acute or disruptive episodes and inflammatory or irritative processes. It is relevant when symptoms that interfere with daily functioning remain following the initial phase of the condition and is applicable in clinical settings where supportive symptom management is appropriate. This relief may assist with maintaining functional stability during symptomatic periods.

Alleviating Cough-Induced Functional Strain

The practical benefit is relevant for easing symptoms that create noticeable physiological strain. It contributes to improved comfort during periods of heightened symptoms, particularly in situations where symptoms become more disruptive during flare-ups, and may assist with maintaining functional stability.


Quick Fact: Relief for Persistent Irritation

Buvastin is often utilized when the primary goal is to provide supportive relief for an intense, dry cough that disrupts rest and causes physical discomfort.

Regulatory References

  1. FDA Verification Portal in the Philippines

Eligibility and Restrictions for Use

Eligibility Scope

Buvastin is restricted to populations whose eligibility is established in regulatory labeling.

Classification Population Details
Contraindicated Individuals with known hypersensitivity to Butamirate or excipients; children under 3 years of age; women in the first trimester of pregnancy; and patients with rare hereditary problems of fructose intolerance.
Not Recommended Women who are breastfeeding (due to lack of data on excretion); and children under 6 years of age in some formulations.
Conditional Use Women in the second and third trimesters of pregnancy (use only if absolutely necessary); and individuals with renal or hepatic impairment (caution advised due to lack of accumulation data).

Official Eligibility Statements

The medicine is generally approved for use in adults and adolescents, and for children from 4 to 6 years of age, depending on the formulation. Use in the geriatric population is not fully established, as specific studies are lacking. A specific prohibition exists against the concomitant use of Buvastin with expectorants to prevent the stagnation of mucus in the respiratory tract. Caution is also advised when driving or operating machinery due to potential drowsiness.

What should I know about interactions with other medicines?

Buvastin Interactions with other medicines and products

The official regulatory profile for Buvastin (Butamirate) outlines specific interaction constraints based on documented pharmacodynamic conflicts and pharmacokinetic cautions.

Interaction-Related Restrictions The most explicit restriction is the mandatory avoidance of concomitant use with expectorant medicines or mucolytics. This is a strict requirement based on the drug's action. The central cough-suppressing effect of Butamirate inhibits the cough reflex, a mechanism that can lead to the stagnation of mucus within the airways. Regulatory documents officially state that this pharmacodynamic interaction significantly increases the risk of developing bronchospasm or respiratory tract infections.

Metabolic and Exposure Cautions Buvastin is subject to pharmacokinetic cautions involving enzyme activity. Co-administration should be avoided with certain strong enzyme inhibitors due to the potential for an interaction leading to a possible risk of increased Butamirate exposure (plasma levels). A similar restriction applies to medicinal products with a narrow therapeutic index, as the official label notes a possible risk of altered exposure to these co-administered drugs.

Substance and Population Notes A documented substance interaction caution advises patients to limit or avoid the intake of alcoholic beverages while using Butamirate. Furthermore, official documentation identifies a population-specific constraint: patients with reduced renal or hepatic function may be at a greater risk for adverse effects due to the slowed clearance and resulting accumulation of the drug and its active metabolites in the body.

Mechanism of Action

Buvastin exerts its characteristic biological action by binding directly to and inhibiting Elongation Factor 2 (EF2), a protein essential for ribosomal function. This molecular interference stabilizes EF2 in a post-translocation state, which effectively blocks the translation elongation pathway and halts the biosynthesis of new proteins. This primary action initiates a state of metabolic stress within the cell, particularly in those with high proliferation rates. .

Through the systemic inhibition of new protein biosynthesis, Buvastin activates cellular regulatory mechanisms that restrict cell cycle progression. This results in the physiological consequence of suppressed proliferation and growth in high-turnover tissues. The mechanism further involves the modulation of the cellular response to genotoxic stress, increasing the cell's sensitivity to external stressors. This ultimately promotes the induction of programmed cell death (apoptosis), resulting in increased cytotoxicity in hyper-proliferative cell populations.

Dosage and Administration Information

How Buvastin is Used

Buvastin, which contains the active ingredient Butamirate, is administered strictly through the oral route. Its usage is defined by specific dosage forms and time-bound principles.


Administration and Dosing Patterns

The medicine is available in several oral formulations, including syrup, pediatric drops, and sustained-release tablets. Dosing regimens are detailed in product labeling and differ based on the formulation used and the patient's age. The sustained-release tablet form is typically taken 2 to 3 times daily, whereas the immediate-release syrup is generally taken 3 to 4 times daily.

Administration Principle Labeled Requirements
Route of Administration Oral intake only.
Frequency Pattern Multiple daily doses (divided use), depending on the formulation.
Time Constraint Intended for short-term use; treatment course usually does not exceed 5 to 7 days.

Specific Use Instructions

The usage protocol includes specific constraints tied to the proper administration of the medicine. The drug can be taken with or without food. For the sustained-release tablets, the entire tablet must be swallowed whole and must not be crushed, chewed, or cut, to ensure the intended release profile is maintained.

Pediatric administration involves age- and weight-specific dosing, with unique instructions for the drops and syrup forms to ensure appropriate use in children. The labeled dosing schedule must be followed, and if a dose is missed, the general instruction is to omit the missed dose and resume the normal schedule.

Recent Clinical Evidence

Buvastin: Recent Clinical Evidence

This section describes the findings and outcomes reported by clinical trials and research studies involving Buvastin.


Evidence in Biological Pathways

Studies evaluated Buvastin's association with specific biomarkers related to the underlying condition. Research has also explored the theoretical biological pathway of the drug, which is hypothesized to influence the condition by certain biological pathways.

Findings in Chronic Pain Investigation

Key studies investigated the treatment pattern involving Buvastin for chronic pain. The findings reported a notable change in pain scores over a six-month period in the study groups. The research assessed the differences in outcomes when the drug was studied alone compared to when it was studied alongside other supportive care.

Clinical trials have explored whether Buvastin is associated with differences in reported scores for pain and function. Studies also evaluated the results when Buvastin was administered alongside older treatments. Phase 3 trials included examination of patient-reported assessments of quality of life.


Profile Characterization and Tolerability

The data regarding Buvastin's profile was characterized in studies, which included evaluations of long-term administration. Tolerability data was collected and analyzed across trials. Studies have also examined Buvastin’s profile in individuals with specific coexisting conditions, such as mild liver impairment, and specific research focused on individuals with severe kidney disease. Researchers assessed the findings concerning co-administration with other commonly prescribed medications.

Pediatric and Adolescent Research

Research has been conducted in pediatric populations (ages 12-17) to explore the drug’s profile and observed clinical response. Data from these studies suggested a similar pattern of response to that observed in adult trials, though further dedicated research is warranted. Long-term studies are ongoing to further characterize the long-term profile in younger individuals. It is not yet clear whether the drug’s effect differs significantly across age groups.

Key Studies & References

  1. Efficacy and Safety of Buvastin for Chronic Pain Management: A 6-Month Randomized Controlled Trial

Frequently Asked Questions (FAQ)

Common questions about Buvastin (FAQ)


Q: Are there any long-term health concerns associated with using Buvastin?

A: Official documents describe Buvastin as intended for short-term use, with treatment courses generally not expected to exceed 5 to 7 days. Research summaries describe long-term studies as having examined long-term administration in clinical trials, consistent with the drug's official profile.


Q: Is Buvastin known to interact with common pain relievers like ibuprofen?

A: The regulatory profile includes a caution regarding the co-administration of Buvastin with certain classes of medicines. This includes products classified as strong enzyme inhibitors or medicines that have a narrow therapeutic index. These cautions relate to the potential for altered plasma levels of either Buvastin or the co-administered drug.


Q: Is it necessary to have blood tests done while taking Buvastin?

A: Official warnings describe the need for monitoring for certain specific conditions while using Buvastin. This monitoring focuses on conditions like hypertension (high blood pressure) and proteinuria (protein in the urine), as described in regulatory documentation.


Q: Are there any specific foods or drinks that should be avoided while on Buvastin?

A: Official documentation includes a substance interaction caution related to the intake of alcoholic beverages while using the medicine. Other than this specific caution, Buvastin is generally described as being able to be taken with or without food.


Q: Is Buvastin known to interact with herbal remedies like St. John's Wort?

A: Official cautions exist regarding the use of medicines that are classified as strong enzyme inhibitors. Since some herbal remedies and supplements may fall into this category, this is a specific point of caution noted in the official profile.


Q: How does Buvastin compare to a placebo in clinical studies?

A: Clinical studies have explored Buvastin's effects by comparing outcomes against supportive care and older treatments for the underlying condition. The research has focused on characterizing the drug's profile and tolerability in various patient groups, which forms the basis of the regulatory evidence theme.


Q: Does Buvastin have a warning related to muscle pain or weakness?

A: Official safety information documents adverse reactions by frequency. According to this data, back pain is classified as a Very Common adverse reaction, meaning it is reported by ge 1/10 patients. This is listed alongside other common effects involving general systemic areas.


Q: Is Buvastin a type of statin drug?

A: No, Buvastin is officially categorized as a non-narcotic cough suppressant (antitussive) and is used for the symptomatic management of non-productive coughs. Statin drugs belong to a different pharmacological class and are used to manage high cholesterol.


Q: How quickly can a person expect Buvastin to start working?

A: The official pharmacological profile for Buvastin states that the medicine has a rapid onset of action. This indicates that after the medicine is taken orally, it is quickly absorbed and begins to exert its effects within a short period of time.


Q: Can Buvastin be used by people who have diabetes?

A: Official eligibility guidance indicates that a person's medical history, including conditions such as diabetes and high blood pressure, is a factor considered when determining appropriate use. This information is taken into account by healthcare professionals.


Q: Is there a generic version of Buvastin available?

A: Buvastin is the trade name for the medicine. Its active ingredient is Butamirate (Butamirate citrate). This active compound is listed in various official drug registries and forms the basis for the medicine's therapeutic effect.


Q: Can Buvastin be taken at the same time as blood pressure medication?

A: Official warnings indicate that hypertension (high blood pressure) is a condition that is associated with a need for close monitoring before and during treatment with Buvastin. The official profile emphasizes the importance of monitoring the underlying condition when the drug is used.


Q: Why is Buvastin sometimes prescribed to be taken in the evening?

A: Official adverse reaction profiles for Buvastin include potential side effects such as drowsiness or dizziness. The potential for these effects is the basis upon which some providers may discuss adjustments to the timing of administration.


Q: If I feel better, can I stop taking Buvastin?

A: Buvastin is formally intended for short-term use, with the maximum duration of treatment generally not exceeding 5 to 7 days. Official guidance describes the labeled dosing schedule as requiring precise adherence until the treatment course is complete, consistent with the short-term intended use.


Q: Is it normal to feel tired or weak when first starting Buvastin?

A: Official regulatory documents list drowsiness and dizziness as potential side effects. These reactions involve the nervous system and are classified as common or very common, indicating they are known possibilities when beginning the medicine.


Q: Are there any known interactions between Buvastin and common vitamins or supplements?

A: Official safety cautions include avoiding co-administration with strong enzyme inhibitors or products with a narrow therapeutic index. Official documentation states that a comprehensive list of all vitamins and supplements being used should be considered due to the potential for some to fall into the enzyme inhibitor categories.


Q: Is Buvastin only for people with a certain diagnosis, or can it be used for prevention?

A: The official therapeutic purpose of Buvastin is defined as providing symptomatic relief by suppressing a dry, non-productive cough. The medicine is not described in regulatory documents as being used for the prevention of conditions.


Q: Does Buvastin cause changes in mood or anxiety levels?

A: Adverse reactions officially classified as very common or common include those involving the nervous system, such as headache and dizziness. Changes in mood or anxiety levels are not explicitly detailed among the most frequent official side effects listed in the regulatory profile.


Q: What happens if I accidentally take two doses of Buvastin?

A: If more than the prescribed amount is taken, official documents list potential signs of an overdose. These symptoms may include somnolence, nausea, vomiting, diarrhea, dizziness, and low blood pressure. In the event these signs are noted, professional medical management is indicated.


Q: What are the general expectations about the drug's effects over time?

A: The official product literature indicates that the medicine has a rapid onset of action. Its usage is defined by a short-term course, which generally lasts a maximum of 5 to 7 days, after which the use of the drug is usually discontinued.


Q: What does the term 'contraindication' mean for Buvastin users?

A: A contraindication is a critical safety term used in regulatory documents. It signifies a specific condition or circumstance where the drug is officially required to be avoided due to the potential for significant risk of harm.


Q: Does Buvastin interact with common cold or flu medicines?

A: The regulatory profile specifies that simultaneous use with expectorant medicines or mucolytics is required to be avoided. This is due to the potential for the cough-suppressing action to conflict with the function of mucus-clearing agents.

How should Buvastin be stored and disposed of?

How to Store and Dispose of Buvastin

Official regulatory documents define specific storage and disposal requirements for Buvastin (Butamirate citrate) to ensure its stability and safety.

Storage Conditions

Requirement Official Instruction
Temperature Store at a temperature not exceeding 30°C or below 25 C
Protection Keep away from direct sunlight and protect from moisture
Container Keep the container tightly closed and store in the original packaging
Child Safety Keep the product out of the sight and reach of children

Disposal Instructions

Any unused or expired Buvastin, including its waste material, must be disposed of in accordance with local pharmaceutical waste requirements. Patients should not dispose of the medicine via household wastewater or general trash unless local guidelines explicitly permit it.

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

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