Calasept

Quick links to important sections

Medically reviewed

Rosario Oropesa

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 Calasept

Property Description
Active ingredient High-concentration Calcium Hydroxide
Form Ready-to-use Paste (Aqueous Suspension)
Pharmacological Class Strong Base / Alkalinizing Agent / Intracanal Medication
Common Purpose Disinfection and Pulp Protection in Endodontics
Origin Synthetic (Inorganic Chemical Compound)

What is Calasept and What Type of Medication is It?

Calasept is a specialized intracanal medication categorized as a root canal dressing material, used exclusively in endodontic procedures within the tooth structure. Its primary pharmacological identity is that of a strong base and alkalinizing agent, functioning to neutralize the acidic byproducts of bacteria and infection. The general therapeutic purpose of Calasept is to provide effective disinfection and create a suitable environment for healing or repair beneath dental lesions, thereby serving as a material for pulp protection and temporary root filling.

Because of its chemical structure, the material is highly effective against microorganisms present in the root canal system, serving a vital function in temporarily sterilizing the area. Calasept is clinically recognized for its high pH stability within the root canal, an attribute that differentiates it from older or simpler formulations. It is designed for highly localized application and is not a drug intended for systemic action within the body.


Composition and Physical Form of the Calasept Paste

The primary active entity in Calasept is Calcium Hydroxide (Ca(OH)2), a synthetic inorganic compound present in a very high concentration (often exceeding 41%). This high-concentration substance is supplied as a ready-to-use paste, which is defined as an aqueous suspension within a sterile isotonic saline solution.

The product is classified as a combination product because the Calcium Hydroxide is supplemented with essential mineral electrolyte components, including Sodium Chloride, Potassium Chloride, Calcium Chloride, and Sodium Bicarbonate. This specific composition is engineered to optimize the prolonged and controlled release of active hydroxyl ions within the affected dental tissue. A key differentiating feature of the Calasept paste is its smooth, non-setting consistency delivered via a prefilled syringe, which facilitates precise and simple placement within the fine anatomical structure of the root canal, streamlining the required therapeutic procedure.

What side effects are possible with Calasept?

Possible Side Effects and Safety Information

The safety profile of Calasept (high-concentration Calcium Hydroxide paste) is primarily defined by the inherent hazards of its active ingredient, a strong base with high alkalinity. Because this material is intended for highly localized use inside the tooth root, its safety characteristics are governed by chemical hazard classifications rather than the systemic side effect frequencies typical of oral medications.


Official Regulatory Hazard Classifications

The primary adverse effects are local and are classified by regulatory safety data according to the severity of the chemical hazard:

  • Serious Eye Damage: The material is formally classified as a Category 1 hazard for ocular exposure, meaning it has the potential to cause serious eye damage upon direct, accidental contact.
  • Skin Corrosion: It is classified as corrosive, which includes the potential for severe skin burns and intense local skin irritation if the paste contacts soft tissues outside the treatment area.

Safety Considerations Related to Exposure

The material’s use requires strict confinement to the intended anatomical site (the root canal) due to its corrosive nature. In terms of duration, official literature notes that prolonged exposure to the tooth structure itself, typically beyond four to five weeks, may be associated with a change in the dentin’s material properties, potentially leading to a decrease in root fracture resistance.

No standard warnings for systemic populations (e.g., hepatic or renal impairment, older adults, pregnancy/lactation) are listed in the context of the product’s highly localized application, as systemic absorption is not the primary safety concern.

Overdose and Emergency Response

Overdose and When to Seek Help

The information in this section details the official documented risks and required actions for accidental ingestion or severe exposure to Calasept, which contains a high-concentration strong base (Calcium Hydroxide).

Documented Manifestations of Overdose

Accidental exposure to the corrosive substance is associated with severe localized and systemic effects, as documented by medical safety sources:

  • Corrosive Injury: Severe pain in the mouth, throat, or abdomen; chemical burns (necrosis) in tissues; and potential loss of vision following eye contact.
  • Systemic Risk: Potential for rapidly developing shock (low blood pressure), circulatory collapse, and severe pH imbalance (change in blood's acid level).
  • Long-Term Complications: Severe outcomes include permanent lung damage (from aspiration) or difficulty breathing/swallowing due to scar tissue formation.

Required Emergency Actions

Immediate medical attention is mandated for any suspected ingestion or severe exposure:

  • Seek Urgent Help: Contact emergency services (e.g., 911/000) or your local Poison Control Center immediately.
  • Do Not Induce Vomiting.
  • Initial First Aid: If conscious, immediately give water or milk to dilute the substance. For skin or eye contact, flush the affected area with large amounts of water for at least 15 minutes.

Treatment is supportive, focusing on managing the caustic injury. No specific antidote is officially documented. Hospital care involves monitoring vital signs and may require diagnostic procedures like Endoscopy.

Therapeutic Uses of Calasept

What Calasept Treats: Main Uses and Benefits

Calasept is applied across domains where short-term symptom management is appropriate, commonly involving contexts marked by increased discomfort or tension. It provides support that helps ease the overall symptom burden, and may help improve day-to-day comfort during symptomatic periods. It is considered relevant in clinical settings that involve acute or disruptive symptom patterns, and is applied across domains where additional symptomatic support is needed.


Therapeutic Applications

Calasept is commonly used in situations involving certain distressing symptoms or increased discomfort. It is applied in addressing conditions characterized by periods of heightened symptoms or recurrent manifestations. It is often used during phases when symptoms become more noticeable, providing support that helps ease the overall symptom burden, and may help patients cope more steadily with symptom fluctuations.


“It provides support that helps ease the overall symptom burden, and may help patients cope more steadily with symptom fluctuations.”


Quick Fact

Quick Fact: Support During Episodic Symptoms

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Calasept — Official Regulatory Information

The eligibility profile for Calasept, a high-concentration Calcium Hydroxide paste, is defined by its regulatory classification as a localized dental material used inside the tooth. Eligibility rules are based on local factors and professional use, not systemic health concerns.

Classification Eligibility Details
Populations for whom use is allowed All age groups (pediatric, adult, and older adults) requiring a labeled endodontic procedure [FDA Classification].
Populations for whom use is contraindicated Individuals with a documented hypersensitivity or allergy to Calcium Hydroxide or any other component in the paste formulation.
Age-related eligibility rules Use is established and considered appropriate in pediatric dentistry, with eligibility determined by the required dental procedure rather than a minimum age restriction [Official Regulatory Documents].
Condition-specific eligibility rules No documented restrictions are applied based on systemic conditions like hepatic impairment or renal impairment, as the product is non-systemic.
Pregnancy and lactation eligibility status Official regulatory documents do not specify restrictions or limitations, reflecting the minimal systemic absorption of the localized material.
Eligibility-related restrictions Use is strictly restricted to qualified dental professionals who are trained in its specific intracanal application.

Official eligibility statements:

  • The use of Calasept is formally contraindicated in patients with a known ingredient hypersensitivity.
  • The paste is eligible for use across the entire patient lifespan, including children.
  • Eligibility is not limited by systemic health status such as liver or kidney function.

Connection to the overall eligibility profile: Regulatory documents define eligibility primarily based on the local application context and the patient's material compatibility, requiring use only by a qualified professional. The only absolute non-eligibility factor is a known allergy to the material's components.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Due to its classification as a high-concentration Calcium Hydroxide paste applied directly into the tooth's root canal, Calasept is a highly localized, non-systemic product. Consequently, government regulatory documents do not contain warnings for systemic drug-drug interactions, drug-food interactions, or those mediated by metabolic enzymes (e.g., CYP) or transporters.

Official Interaction Profile

The interaction profile is defined exclusively by local chemical incompatibilities with other specialized materials used during the endodontic procedure.

Interacting Substance Category Official Statement on Interaction Pattern
Chlorhexidine (CHX) Solutions Local co-administration results in a chemical reaction that causes the formation of an insoluble precipitate inside the root canal.
Zinc Oxide-Eugenol (ZOE) Sealers Pre-treatment with the alkaline paste may compromise the final quality of the apical seal achieved by subsequent ZOE-based root canal sealers.
Sequential Irrigants (NaOCl & CHX) A procedural separation requirement (intermediate water rinse) is necessary when Sodium Hypochlorite and Chlorhexidine solutions are used sequentially prior to placement to prevent precipitate formation.

This interaction structure confirms that the official regulatory information concerns only procedural constraints and local material compatibility within the treatment site, not systemic exposure or safety.

Mechanism of Action

How Calasept Works

The mechanism of action for Calasept is based on localized chemical effects, not systemic receptor binding, utilizing its identity as a strong base to drive profound ionic changes within the tooth structure.

Ionic Chemical Lysis and Aseptic Action

This domain covers the immediate chemical effect of the paste's alkalinity on microbial and organic structures. The product undergoes ionic dissociation, releasing hydroxyl ions ( OH^-), which function as a protein denaturant and saponifying agent. This chemical reaction directly targets the bacterial cytoplasmic membrane and key microbial enzymes, causing cellular lysis and the chemical dissolution of organic material. The primary physiological consequence is the reduction of microbial populations (asepsis) and the chemical dissolution of organic material within the canal system.

Alkalinization, Detoxification, and Tissue Conditioning

This domain addresses the creation and maintenance of an extreme alkaline pH environment, with the aqueous electrolyte components controlling the sustained release of ions. This sustained alkalinity chemically neutralizes and degrades bacterial endotoxins (e.g., lipopolysaccharides or LPS), resulting in the attenuation of local inflammatory stimuli. Furthermore, the release of calcium ions ( Ca^2+) acts as a signaling trigger, modulating the activity of mineralization pathways in surrounding host cells. This combined effect establishes a local environment that modulates the initiation of hard tissue matrix formation.

Dosage and Administration Information

Official Administration Guidelines for Calasept (Calcium Hydroxide Paste)

Calasept is a dental medicament, not a systemic human drug, and is intended strictly for professional dental use as an intracanal or intracavity application. Its use is governed by established procedural standards for calcium hydroxide pastes.


Administration Scope and Preparation

Usage Attribute Official Guideline
Route of Administration Localized application directly into the prepared tooth cavity or root canal system.
Dosing Principle Volume is determined by the size of the prepared dental space; applied as a thin layer for capping or to fill the canal for temporary dressing.
Form Typically a ready-to-use paste in an airtight syringe, delivered via a specialized needle (such as the Flexi-Tip).
Preparation No preparation is required for the ready-to-use syringe paste. Prior to application, the dental site must be isolated, cleaned, and thoroughly dried.

Procedural Structure and Duration

Official Step Sequence for Application and Duration:

  1. Preparation: The dental area is cleaned and dried by the professional.
  2. Application: The paste is delivered directly into the cavity or along the entire length of the root canal using the syringe and applicator tip.
  3. Sealing: For all uses, the paste is immediately covered and sealed tightly with an appropriate temporary or final filling material to prevent contamination.
  4. Duration: For temporary root canal dressings, the material is intended to remain in place for a specified period (e.g., typically one week or more, as professionally determined) before the next appointment.
  5. Removal: In temporary applications, the paste must be removed before the definitive root canal filling is placed, usually through irrigation and instrumentation.

These guidelines define the technique for using the dental paste, establishing the delivery method and the temporary nature of its use within the dental treatment protocol.

Recent Clinical Evidence

Research evidence / Overview of studies for Calasept


Evidence for Use in Temporary Root Canal Disinfection

Research has explored the use of high-concentration calcium hydroxide as an intracanal medicament, primarily in research contexts involving teeth with infected root canals. These studies include short-term Randomized Controlled Trials (RCTs) and systematic reviews that compared the material against other medicaments or control conditions. Studies monitored measurements of intracanal microbial populations, and a decrease was reported during the short observation periods. Furthermore, some trials and reviews reported patterns related to a lower frequency of postoperative pain and acute symptom flare-ups in the observed populations that received the medicament compared to control groups.

What remains uncertain is the optimal duration the material should remain in the root canal; this interval has not been consistently established across all studies. Evidence also suggests findings may vary depending on the specific bacterial species being studied, as data show patterns related to certain resistant organisms.


Evidence for Support in Periapical Healing

Research has explored the role of high-concentration calcium hydroxide in studies observing the healing process of lesions at the tip of the root (periapical lesions). This has been evaluated through various forms of research, including retrospective cohort studies and long-term clinical follow-up reports. Studies reported how the radiographic appearance of these lesions evolved in the observed populations, documenting outcomes related to observed changes in the radiolucency. Reported success rates for radiographic healing outcomes showed wide variation across the different clinical investigations, contributing to the broader evidence landscape.

The evidence is limited, however, by a lack of conclusive, high-certainty RCTs directly comparing long-term healing outcomes to other materials. The reliance on two-dimensional X-rays for assessment also introduces limitations.


Evidence for Pulp Protection and Dentin Barrier Formation

High-concentration calcium hydroxide has been studied for its role in supporting the formation of a reparative tissue structure, primarily through pulp capping and related procedures. These trials examined outcomes related to the material's role in the tooth's capacity to form a hard tissue barrier (reparative dentin) and how pulp vitality was monitored over time. While patterns related to dentin repair are generally documented in the research, its long-term clinical outcomes when compared to newer, contemporary dental materials are less certain and findings were mixed.


What is Still Uncertain About Calasept's Research Base

Findings were mixed when comparing the material to the outcomes reported for some newer, bioactive dental materials. Furthermore, sample sizes were often modest in high-quality RCTs, meaning results apply only to the specific populations studied. Research is ongoing to better contextualize findings related to the material within the broader evidence landscape.

Key Studies & References

  1. Calcium hydroxide as an intracanal medication for postoperative pain during primary root canal therapy: A systematic review and meta-analysis with trial sequential analysis of randomised controlled trials
  2. Effectiveness of intracanal calcium hydroxide medicament in treating periapical lesions: a systematic review
  3. Calcium hydroxide intracanal medication effects on pain and flare-up: a systematic review and meta-analysis

Frequently Asked Questions (FAQ)

Common questions about Calasept (FAQ)

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

A: According to the official product information, Calasept is a highly localized dental material and is not intended for systemic use in the body. Consistent with this, regulatory documents do not contain warnings for systemic interactions with other medicines, including common over-the-counter pain relievers. The official interaction information focuses exclusively on chemical incompatibilities with other materials used during the dental procedure.


Q: Does Calasept interact with alcohol?

A: Official regulatory documents do not list warnings for interactions involving alcohol. This is because Calasept is a localized paste applied by a dental professional only inside the tooth, resulting in minimal systemic absorption.


Q: Does Calasept interact with common supplements like vitamins or herbal remedies?

A: Official regulatory documents do not list warnings for interactions with supplements, vitamins, or herbal remedies. This is consistent with the product's classification as a highly localized, non-systemic dental material.


Q: Can I take Calasept if I am already taking medication for blood pressure?

A: Eligibility to use the material is primarily defined by local factors within the tooth, not systemic health concerns. Official regulatory documents do not list restrictions for use based on taking systemic medications like those for blood pressure, reflecting its non-systemic use.


Q: Does Calasept interact with birth control pills?

A: Regulatory documents do not list warnings for potential interactions with oral contraceptives. Calasept is a paste intended for localized use inside the tooth structure, meaning its systemic absorption is minimal.


Q: Is it possible for Calasept to cause weight changes?

A: The safety profile for Calasept focuses on local chemical hazards and effects within the treatment site. Official documents do not list systemic effects such as weight changes, which is aligned with its intended use as a localized, non-systemic dental material.


Q: Can Calasept affect my sleep schedule?

A: Official regulatory documents do not list systemic effects, such as changes to the sleep schedule. The safety profile is defined by local chemical hazard and is consistent with its use as a localized, non-systemic dental material.


Q: How quickly does Calasept usually start working?

A: The mechanism of action for Calasept is a chemical process that begins immediately upon professional application. This involves the release of hydroxyl ions to begin the chemical process of dissolving organic material and reducing microbial populations within the tooth structure.


Q: Is it normal to feel a mild change in appetite when starting Calasept?

A: The safety profile of the paste is defined by local chemical hazards, as it is a non-systemic material. Official documents do not list systemic effects, such as a change in appetite, which aligns with its localized method of use.


Q: Why do official documents describe Calasept as a 'Schedule X' classification?

A: Official regulatory documentation identifies Calasept as a synthetic, inorganic chemical compound and a strong base used in endodontic procedures. This material is not listed with a controlled substance schedule classification in regulatory information.


Q: Is Calasept addictive or habit-forming?

A: Official regulatory documents do not include warnings about addiction or habit-forming potential. This is consistent with the material’s classification as a localized, non-systemic dental paste.


Q: Are there specific food types that interact with Calasept?

A: Official regulatory documents do not list specific food-drug interactions because Calasept is a localized material. Administration guidelines require the paste to be immediately sealed tightly inside the tooth by the dental professional to prevent contact with food or drink.


Q: Is there a specific time of day Calasept is recommended to be taken?

A: Calasept is a paste applied exclusively by a dental professional directly into the tooth as part of a procedure. It is not an oral medication, but a paste applied by a dental professional.


Q: Is Calasept a controlled substance?

A: Official documentation identifies Calasept as an inorganic chemical compound and a strong base used for endodontic procedures. It is not listed with a controlled substance schedule classification in regulatory information.


Q: Do I need to change my diet while taking Calasept?

A: Official regulatory documents do not list systemic drug-food interactions. Administration guidelines require the material to be covered and sealed tightly with a filling material to prevent contamination from food or drink, which addresses contact at the local site.


Q: What happens if I accidentally skip a time to take Calasept?

A: Calasept is not an oral medication taken by the patient. It is a paste professionally placed in the tooth and intended to remain there until the next professional dental appointment.


Q: Are there any known issues with drinking coffee or caffeine while taking Calasept?

A: Official documents do not list restrictions for coffee or caffeine consumption. The administration guidelines state that the paste must be immediately sealed tightly with a filling material, which is intended to prevent exposure to external elements like food or drink.


Q: Will Calasept show up on a standard drug test?

A: Official regulatory documents do not contain information regarding drug testing in this context. The product is classified as a highly localized, non-systemic dental material, meaning systemic absorption is minimal.


Q: How long does Calasept stay in your system after you stop taking it?

A: Calasept is a highly localized paste placed inside the tooth for local chemical action, not systemic absorption. As a localized paste, it is designed for local chemical action, not systemic absorption, and is removed by the dental professional.


Q: What kind of warnings are included in the official prescribing information for Calasept?

A: The official warnings focus on local chemical hazards, including the potential for serious eye damage and skin corrosion upon accidental contact. Contraindications listed include known hypersensitivity or allergy to any of the ingredients in the paste.


Q: If I have a mild headache while taking Calasept, is that a concern?

A: The safety profile for this material is defined by local chemical hazards. Official documents do not list systemic side effects such as headache, which is consistent with its classification as a localized, non-systemic dental material.


Q: What happens if Calasept is taken in slightly higher amounts than directed?

A: Calasept is a material applied and dosed by a dental professional based on the size of the prepared dental space. The material is professionally applied and the patient does not handle or take it. After placement, the paste is immediately covered and sealed tightly by the professional.


Q: Is Calasept available in different strengths or forms (e.g., tablet, liquid)?

A: Official documentation specifies that the product is supplied as a ready-to-use paste in an aqueous suspension. The product information confirms its availability as a ready-to-use paste, but does not list availability in other forms like tablets or liquids.


Q: What are the most common reasons Calasept is prescribed?

A: Official documents describe the common purposes that Calasept is intended to be used for as providing disinfection, pulp protection, and serving as a temporary root filling material within endodontic procedures.


Q: Do any official sources mention specific dietary restrictions for Calasept users?

A: Official regulatory documents do not mention systemic drug-food interactions or specific dietary restrictions. The product is localized and sealed tightly within the tooth structure during the treatment process.


Q: Are there any known issues with taking Calasept before or after a minor procedure?

A: Eligibility rules are based on local factors within the tooth and do not list restrictions regarding systemic health status or for other minor procedures. This aligns with the product's classification as a highly localized and non-systemic material.


Q: Is there a lot of history or public data about Calasept?

A: Official evidence reviews confirm that research has explored the use of high-concentration calcium hydroxide as an intracanal medicament. These studies, including short-term Randomized Controlled Trials and systematic reviews, document the material’s role in contexts like disinfection and tissue conditioning.

How should Calasept be stored and disposed of?

️ Official Storage and Disposal Requirements

Official labeling mandates specific conditions for storing Calasept (Calcium Hydroxide paste) to maintain its chemical integrity and safety.

Storage Requirement Conditions Mandated by Regulation
Temperature & Light Store at room temperature; Do not refrigerate or freeze. Avoid exposure to direct sunlight.
Container & Environment Keep in the tightly closed original container in a cool, dry, and well-ventilated place.
Stability Protection Store strictly away from strong acids and other incompatible chemical materials.
Child Safety Containers must be stored locked up and kept out of the reach of children.

For disposal, the product must not be released into the sewage system, water bodies, or household trash. Unused product and empty containers must be handled as controlled waste and disposed of at a licensed waste disposal site in accordance with all local regulations.

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

Equivalent of Calasept found in:

A-Z Index: