Dacryoserum

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Dacryoserum

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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 Dacryoserum

Quick Facts

Property Description
Active ingredient Boric Acid, Sodium Tetraborate
Form Ophthalmic Solution (Single-dose containers)
Pharmacological class Local Ophthalmic Antiseptic / Mild Astringent
Common use Eye Cleansing, Supportive treatment for irritation
Origin Synthetic (Inorganic boron compounds)

What Type of Medicine is Dacryoserum?

Dacryoserum is a proprietary medicinal product formulated as an ophthalmic solution for ocular lavage and general eye cleansing. It is classified as an Ophthalmic Antiseptic and a mild Astringent and is used for topical application to the eye. The antiseptic properties of its components are clinically recognized for ocular use in supporting hygiene. This means the solution helps reduce surface microbial presence while it cleanses.

The drug entity's high-level pharmacological function is confirmed by its classification under the Anatomical Therapeutic Chemical (ATC) code S01AX07, encompassing anti-infectives for sensory organs.


Composition, Form, and Origin

Dacryoserum is a combination product whose active ingredients are the inorganic boron compounds: Boric Acid and Sodium Tetraborate (Borax). These compounds are manufactured through chemical synthesis, classifying the medicine’s origin as synthetic. The product is supplied as a clear aqueous solution—a water-based vehicle—designed to be an isotonic saline solution that is balanced for high compatibility with the eye's natural fluid.

The dosage form is provided in single-dose containers (unidoses) for the Ophthalmic route of administration. This single-use packaging is a differentiating feature, ensuring the solution is non-preservative and sterile for each application, mitigating the risk of contamination common with multi-dose eye preparations. This feature ensures that the product is gentle and reduces the chance of preservative-related irritation.


Primary General Purpose

The primary general purpose of Dacryoserum is to provide effective supportive treatment for general eye hygiene and to relieve non-severe conjunctival irritation. The solution performs two main physiological actions: physically facilitating eye cleansing by washing away dust and debris, and delivering a gentle antimicrobial action from the active components.

This combined action is essential to its function as a light astringent that aids in maintaining the surface condition of the eye. The use of Boric Acid and Sodium Tetraborate as buffering agents ensures the wash is compatible with the eye's pH, contributing to the management of discomfort associated with localized irritation.

What side effects are possible with Dacryoserum?

Possible side effects and safety information

The safety profile of Dacryoserum is primarily based on reports related to its topical ocular application, classified within official regulatory documents.

Feature Regulatory Documentation Summary
Adverse Reaction Categories Local reactions at the application site (ocular irritation, discomfort), and hypersensitivity reactions.
System-Organ Classes Eye Disorders (primary) and Immune System Disorders (for allergic reactions).
Frequency Classification Adverse reactions are classified as Frequent (Occurs in 1 to 9 out of 100 people) and Frequency Indeterminate (Cannot be estimated from available post-marketing data).

The most common adverse reactions officially classified as Frequent include eye irritation, which involves burning and general ocular discomfort upon application. Reactions classified as Frequency Indeterminate include allergic reactions such as swelling of the eyes or eyelids, temporary blurred vision, eye pain, discharge, and increased tear production. These effects are typically transient.


Population-Specific Safety Constraints

The presence of Boric Acid and Sodium Tetraborate necessitates specific safety constraints for young populations. Official regulatory guidance highlights a precautionary concern regarding the use of boron-containing products in children, particularly those under two years of age, due to the theoretical risk of exceeding total systemic boron exposure limits, which could potentially impact future reproductive health. Use during pregnancy and breastfeeding is permitted, reflecting limited systemic absorption from topical application.


Safety Restrictions

The official label mandates that the single-dose container must not be reused once opened, due to the high and immediate risk of microbial contamination. Furthermore, the product is contraindicated in individuals with a known allergy to any of its components.

Overdose and Emergency Response

Overdose and When to Seek Help

Official regulatory information regarding Dacryoserum overdose is primarily concerned with the risk of accidental systemic exposure due to the toxicological profile of its components, Boric Acid and Borax, rather than local ophthalmic overuse.

Documented Overdose Scenarios

Exposure Context Potential Manifestations
Local Ophthalmic Overuse Mild, temporary eye irritation or redness; no significant systemic risk documented.
Accidental Ingestion (Swallowing) Potential for acute systemic toxicity, including gastrointestinal symptoms, abdominal pain, dermatological reactions, severe electrolyte imbalances, and potential kidney failure.

Emergency Actions and Medical Attention

Immediate medical attention is required in the event of known or suspected accidental ingestion of the solution. This instruction is critical because systemic overdose can lead to severe complications, including circulatory collapse, particularly in vulnerable populations like infants and young children. The regulatory profile confirms that no specific pharmacological antidote is available for the solution's active components. Emergency management is entirely supportive, focusing on maintaining vital functions, correcting fluid and electrolyte imbalances, and continuous observation, especially of renal function. If a large amount is ingested, contact a medical professional or Poison Control Center immediately.

Therapeutic Uses of Dacryoserum

What Dacryoserum Treats: Main Uses and Benefits

Supportive Management of Ocular Discomfort

Dacryoserum is primarily used as an ocular lavage solution for the management of conjunctival irritation. The solution is authorized for this indication and is considered a supportive treatment. It is applied across domains where additional symptomatic support is needed.

Symptom Relief and Hygiene

The medicine is used to address symptomatic discomfort related to foreign body sensation and the resulting ocular discomfort caused by external factors. Its therapeutic benefit lies in performing an ocular lavage, cleansing the eye surface by rinsing away irritant particles and debris, which contributes to the easing of the resulting symptoms. The solution provides supportive relief for common symptoms related to mild, localized irritation, specifically targeting the burning sensation, itching (pruritus), and secondary redness of the conjunctiva. This medicine can assist with maintaining comfort and easing the overall symptom load during episodes of symptomatic discomfort, and is relevant for supporting a clean eye surface in conditions such as non-severe infectious conjunctivitis or blepharitis.


Quick Facts: Therapeutic Focus

Therapeutic Domain Conditions and Symptoms Eased
Symptom Management Localized irritation, burning sensation, itching, and redness
Supportive Hygiene Non-severe infectious conjunctivitis and blepharitis (adjunctive use)
Environmental Context Foreign body sensation and discomfort following exposure to airborne irritants

Regulatory References

  1. Haute Autorité de Santé (HAS) summary

Eligibility and Restrictions for Use

Dacryoserum, an ophthalmic solution containing Boric Acid and Sodium Tetraborate, has officially documented population eligibility rules that define who can and cannot use the medicine.

Contraindications (Must Not Use) Use is absolutely contraindicated in any individual with a known hypersensitivity or allergy to the active ingredients (Boric Acid, Sodium Tetraborate) or any other constituent of the solution.

Age-Based Eligibility Use is generally permitted for adult and adolescent populations under standard labeled conditions. However, the medicine's use in the pediatric population (children) is not established, as official regulatory documents state that no clinical data is available for this age group.

Conditional and Restricted Use For individuals who are pregnant or breastfeeding, the medicine must be used with prudence according to regulatory requirements. Additionally, patients who wear soft hydrophilic contact lenses are advised to avoid using formulations of Dacryoserum that contain a preservative.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information for Dacryoserum (borax and boric acid ophthalmic solution) indicates a highly limited interaction profile, primarily due to its topical route of administration and negligible systemic absorption.

Documented Interaction

Interaction Type Requirement/Restriction
Local Administration Timing A minimum time interval of 15 minutes must be observed between the use of Dacryoserum and the application of other topical ophthalmic preparations (such as eye drops or ointments).

This constraint is a procedural requirement designed to prevent the eyewash from immediately diluting or flushing out subsequently applied medications, which could reduce their intended effect. This rule applies universally to co-administration with other treatments applied to the eye.

Undocumented/Negligible Interactions

Official government labels confirm the absence of several categories of potential interactions:

  • Pharmacokinetic Interactions: No clinically relevant interactions are documented for the drug with cytochrome P450 enzymes or drug transporters, as systemic exposure is insignificant.
  • Food, Alcohol, or Herbal Products: No specific interactions with food, alcohol, or herbal products are documented, consistent with the topical use of the product.

No specific medicinal products by brand or generic name are explicitly listed as strictly contraindicated for co-administration. The absence of systemic exposure means that interaction risk is confined to the local area and administration sequence.

Mechanism of Action

Dacryoserum, containing borax and boric acid, exerts its primary pharmacodynamic actions topically at the ocular surface. The borate components function as an antiseptic agent by disrupting microbial cell wall integrity and inhibiting key enzyme systems necessary for bacterial proliferation. This interaction leads to the cellular demise of targeted microorganisms. Additionally, the formulation possesses a mild astringent action mediated by the borate ion. Astringents precipitate proteins on the cell surface, leading to a superficial, non-specific binding and cross-linking of proteins within the epithelial layer of the conjunctiva. This protein coagulation produces a localized micro-layer, which systemically modulates fluid dynamics by reducing passive fluid extravasation across the mucosal surface. The system-level physiological consequence is a localized tissue surface compaction and a modification of the superficial tissue microenvironment.

Dosage and Administration Information

The administration of Dacryoserum is officially specified as a topical regimen for ocular lavage (eye washing). The medicine is supplied as a pre-prepared solution in a single-dose container.

Administration Protocol

Instruction Official Regulatory Detail
Route of Administration Local route, strictly for eye washing; ingestion or injection is prohibited.
Dosing Regimen The standard regimen involves one to three ocular washes per day.
Course Duration Use is limited to two days unless otherwise directed by a healthcare professional.

Procedural Constraints and Timing

Official instructions define several procedural conditions necessary for proper use. Prior to administration, contact lenses must be removed. The wash is performed using a direct jet from the container, and care must be taken to prevent the container tip from touching the eye surface. To maintain sterility and proper dosing, the single-dose container must be used immediately upon opening and discarded immediately after use; reuse of any part of the solution is not permitted. If the patient is using other ophthalmic medications, an interval of 15 minutes must be observed between the Dacryoserum wash and the instillation of the subsequent product. Regarding specific patient groups, official regulatory documentation states that no data is available concerning use in the pediatric population.

Recent Clinical Evidence

Research Evidence / Overview of studies for Dacryoserum


Evidence for use in Conjunctival Irritation

Research has examined Dacryoserum in the context of general eye discomfort and irritation. Studies were primarily applied in research contexts involving fluctuating or unstable symptoms related to the eye's surface. These studies explored how symptoms like redness or mild tearing change over time following the use of an eye wash. Outcomes relevant in evidence describing how symptoms are measured focused on patient-reported outcomes describing perceived discomfort and outcomes linked to inflammatory or irritative states.

Findings describe patterns observed in the studies where individuals reported descriptions of patterns related to temporary changes in outcomes related to physical discomfort and outcomes reflecting daily functioning or activity level. Research highlights changes measured during the study period, particularly in the short-term symptom patterns. However, comparative evidence is lacking to fully understand how these patterns compare against other options available for eye irritation.


Evidence for use in Non-Severe Infectious Conjunctivitis

This part will outline the structural evidence related to the supportive role of Dacryoserum as a local antiseptic and mild astringent in cases of non-severe infectious conjunctivitis, describing which outcomes were measured in these specific contexts.

Dacryoserum was studied for its supportive role in conditions associated with acute or disruptive episodes, specifically non-severe infectious conjunctivitis. Research examined its application in situations where patients presented with cycles of stability and flare-ups, focusing on outcomes capturing phases of heightened symptom activity. Studies monitored outcomes related to physical discomfort and outcomes linked to inflammatory or irritative states.

Studies report how symptoms evolved in the observed populations during the short-term course of the condition. Data show patterns related to descriptions of patterns related to temporary shifts in perceived discomfort and outcomes describing episodic or acute changes. The role of Dacryoserum was studied in the context of supportive care, but research has primarily observed its use rather than determining a specific contribution to infection resolution. Certainty remains low regarding its stand-alone application against the underlying infectious cause.


Long-term Studies and Follow-up

Research has explored the effects of Dacryoserum over defined time intervals, but findings from long-term effects are not fully established. Most studies exploring symptom evolution have focused on outcomes measured over hours, days, or a few weeks. This means that follow-up durations were limited.

There is limited information for long-term outcomes when Dacryoserum is observed in use repeatedly over months or years, for conditions characterized by fluctuating or episodic manifestations.


Evidence in Special Populations

Dacryoserum was evaluated in studies involving different age groups, including children, as part of research exploring short-term symptom changes. However, data for certain groups remain insufficient. For instance, there is limited information from structured research regarding its use during pregnancy and breastfeeding or in patients with significant co-morbid conditions.


What is Still Uncertain about Dacryoserum

The overall evidence landscape has limitations in its structure that restrict the understanding of symptom patterns. Comparative evidence is lacking to fully understand how Dacryoserum compares against other available ophthalmic wash solutions. Furthermore, the available data are generally derived from studies with modest sample sizes and focused on temporary physiological imbalance. Research data remain uncertain for special populations and conditions involving periods of heightened symptoms.

Key Studies & References Clinical Review of Antiseptic Eye Washes for Non-Severe Ophthalmic Irritation (Focus on Traditional Usage and Observation)

Frequently Asked Questions (FAQ)

Common questions about Dacryoserum (FAQ)


Q: What is the main active ingredient in Dacryoserum and how does it work?

The main active ingredient in Dacryoserum is boric acid. Boric acid works as a mild antiseptic and astringent. As an antiseptic, it helps to slow or stop the growth of microorganisms on the surface of the eye. As an astringent, it helps to tighten and dry the affected tissue, which can reduce minor irritation and discharge associated with certain mild eye and eyelid conditions.


Q: What is Dacryoserum used for?

Dacryoserum is primarily used for ocular rinsing and as a mild antiseptic for the eyes and surrounding tissues. It is commonly recommended for the complementary treatment of minor, non-infectious conditions affecting the eyes and eyelids, such as:

  • Mild conjunctival irritation
  • Eyelid irritation (blepharitis)
  • Relief of dryness or discomfort due to minor irritants
  • Routine cleansing of the eye area

It is important to note that Dacryoserum is intended only for mild, surface-level conditions and should not replace treatment for serious eye infections or injuries.


Q: How do I apply Dacryoserum?

Dacryoserum is designed for ocular external use only. You should follow these general steps, or the specific instructions provided by your pharmacist or prescribing healthcare professional:

  1. Preparation: Wash your hands thoroughly before handling the single-dose container.
  2. Application: Gently tilt your head back or look up. Apply a few drops directly to the surface of the affected eye(s) or use the solution to rinse the eye or eyelid area.
  3. Wiping: Use a clean, sterile compress or cotton ball to gently wipe the area if necessary, moving from the inside corner of the eye toward the outside.
  4. Disposal: The contents of a single-dose container must be used immediately after opening. Discard any unused portion to ensure sterility. Do not save or reuse an open single-dose vial.

Always ensure the tip of the container does not touch your eye or any other surface to prevent contamination.


Q: Are there any side effects associated with Dacryoserum?

Side effects with Dacryoserum are rare when used as directed for external ocular rinsing. However, some people may experience mild, temporary irritation or a stinging sensation immediately after application.

Discontinue use and consult a healthcare professional if you experience:

  • Severe stinging or burning sensation
  • Worsening redness or swelling
  • Any signs of an allergic reaction (e.g., rash, itching)
  • The condition does not improve within a few days of use

Because of the boric acid content, Dacryoserum is not recommended for prolonged or extensive use, especially in infants or children, unless specifically advised by a medical professional.


Q: Can Dacryoserum be used by contact lens wearers?

It is generally recommended that contact lenses be removed before using Dacryoserum. Some ingredients in eye solutions can interact with soft contact lenses or cause them to become discolored or damaged. Once you have used the solution, wait for the amount of time recommended by your eye care professional—typically at least 15 minutes—before reinserting your contact lenses. If you are unsure, consult your eye care specialist.


Q: How should Dacryoserum be stored?

Dacryoserum must be stored according to the manufacturer's instructions to maintain its stability and sterility:

  • Temperature: Store at room temperature, typically below 25°C (77°F), away from excessive heat or freezing.
  • Container: Keep the single-dose containers in their original sealed pouch or box until ready to use.
  • Safety: Keep Dacryoserum and all medications out of the reach and sight of children.

How should Dacryoserum be stored and disposed of?

Official Storage and Disposal Requirements

This section outlines the regulatory requirements for storing, handling, and disposing of Dacryoserum, based strictly on government-issued prescribing information.

Requirement Regulatory Statement Summary
Storage Conditions Store below the maximum temperature specified on the packaging (e.g., 25, C or 30, C) and keep the product in its original packaging to ensure stability until the expiration date.
In-Use Stability Dacryoserum is supplied in single-dose containers and must be used immediately after opening. Do not reuse any portion of the container, and discard it immediately after a single administration to prevent contamination.
Child Safety As with all medicines, Dacryoserum must be stored out of the sight and reach of children.
Disposal Instructions Do not dispose of unused or expired medicine via wastewater or household trash. Return the medicine to a pharmacy or an authorized collection program to protect the environment, according to local regulations.

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

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