Scandonest

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Scandonest

Method of action: Anesthetic

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 Scandonest

Property Description
Active ingredient Mepivacaine hydrochloride
Form Aqueous solution for injection
Pharmacological class Amide-type Local Anesthetic
General purpose Induces temporary, localized numbness
Origin Synthetic

What Type of Medicine is Scandonest?

Scandonest is a synthetic prescription medication categorized as a local anesthetic, containing the active substance Mepivacaine hydrochloride. This drug is classified as an amide-type local anesthetic, a designation that is chemically and metabolically distinct from older ester-type agents. This class of medication temporarily prevents the conduction of nerve impulses, working by stopping the communication pathway for pain signals. This action is widely clinically recognized for providing effective, short-to-intermediate duration anesthesia during procedures like routine dental work.

Composition and Form of Scandonest

The medication is prepared as an aqueous solution for injection, a clear liquid delivered precisely to the target area. The essential component is Mepivacaine hydrochloride, which is dissolved in the aqueous base. Scandonest is notable for offering formulations specifically tailored for dentistry, often supplied in specialized dental cartridges for controlled administration. Formulations vary: some are supplied as a single active product, while others are combination products that also include a vasoconstrictor such as Adrenaline or Levonordefrin. This variation allows medical professionals to select the specific type needed, managing the localized numbness based on patient sensitivities or physiological needs.

What is the General Purpose of Scandonest?

The primary general purpose of Scandonest is to enable safe and comfortable interventions by achieving immediate, localized insensitivity through blocking nerve impulse conduction. The fundamental benefit of this drug is its ability to render a specific area of the body numb, helping to ensure that the patient does not perceive pain during the procedure. Mepivacaine is utilized for its role in loco-regional anesthesia, serving as a tool for temporarily eliminating painful signals at the treatment site.

Regulatory References

  1. mepivacaine hydrochloride injection, solution - DailyMed - NIH

What side effects are possible with Scandonest?

Possible Side Effects and Safety Information

The safety profile for Mepivacaine hydrochloride, the active ingredient in Scandonest, is defined by regulatory agencies based on established categories of potential adverse reactions. These reactions are typically dose-dependent and related to the drug's systemic absorption.

Officially documented side effects are categorized by the physiological system affected and the frequency of occurrence, consistent with the framework used by regulatory authorities like the FDA and EMA.

Adverse Reaction Classification

Adverse effects are grouped into System-Organ Classes, with the most prominent being Nervous System Disorders and Cardiac Disorders. Common side effects may include symptoms like dizziness, nausea, vomiting, and nervousness. More significant, though rare, events include serious hypersensitivity reactions (e.g., anaphylaxis) and systemic toxicity leading to convulsions or cardiac arrest, which are recognized as Serious Adverse Reactions in official labeling.

Classification Tier Examples of Documented Effects
Common Dizziness, nervousness, nausea, vomiting
Rare Anaphylaxis, cardiac arrest, convulsions

Safety Considerations and Limitations

Official regulatory documents note specific constraints for use. Mepivacaine is contraindicated in individuals with a known hypersensitivity to any amide-type local anesthetic. Furthermore, caution is warranted for patients with pre-existing conditions that can affect drug elimination. Safety notes specify the need for increased caution in patients with hepatic impairment (liver dysfunction) or renal impairment (kidney dysfunction), as these conditions may increase the potential for systemic accumulation and subsequent toxicity, a constraint also applicable to older adults.

Overdose and Emergency Response

Overdose and When to Seek Help

Mepivacaine systemic toxicity presents as a life-threatening medical emergency affecting the Central Nervous System (CNS) and cardiovascular system. CNS effects are biphasic: initial stimulation (e.g., tremors, restlessness, disorientation) progresses to depression, resulting in serious outcomes like convulsions, coma, and respiratory arrest. Cardiovascular toxicity includes depressed myocardial contractility and conduction, which can lead to hypotension, ventricular arrhythmias, and ultimately cardiac arrest.

A separate, severe risk documented in regulatory labeling is methemoglobinemia, a condition identified by signs like cyanosis (pale, gray, or blue-colored skin, lips, or nail beds), fatigue, and headache. Immediate medical attention must be sought if these symptoms are observed. Management in all overdose situations requires immediate attention to establishing a patent airway, providing 100% oxygen, and controlling seizures.

Official documents note that resuscitative equipment and drugs must be immediately available, and continuous monitoring of vital signs is required. Patients with hepatic or renal impairment, infants under six months, and the elderly are officially considered to be at increased risk for developing toxic plasma concentrations. Methylene blue is described for treating methemoglobinemia that is unresponsive to oxygen.

Therapeutic Uses of Scandonest

What Scandonest Treats: Main Uses and Benefits

Scandonest is applied across domains where additional symptomatic support is needed, primarily for local and loco-regional anesthesia in dental surgery. The product is used to help with the symptoms related to physical discomfort and acute pain associated with invasive clinical procedures. The medication is relevant for easing acute procedural pain during common clinical scenarios, including extractions, restorative work, and various oral surgical interventions.

Supportive Management and Specialized Use

Scandonest is generally used in clinical settings that involve acute or unstable symptom patterns, helping address symptom clusters that may become intense or disruptive. The primary benefit is providing supportive relief when symptoms become temporarily overwhelming and interfere with routine activities. The medication plays a role in managing symptoms for specific patient groups, including children (above a certain weight) and medically compromised patients, by offering formulations without added vasoconstrictors. This may contribute to improved day-to-day comfort during the post-procedural period.


Quick Fact: Relief for Acute Procedural Pain
Therapeutic Context: Loco-regional anesthesia during dental and oral procedures.
Symptom Management: Helps manage intense acute pain and sensory discomfort.
Benefit to Patient: Contributes to improved comfort, supporting a patient's ability to cope more steadily with symptomatic episodes.

Eligibility and Restrictions for Use

Contraindications and Non-Eligibility Rules

Scandonest (Mepivacaine hydrochloride) is restricted to specific patient populations as defined by regulatory labeling. Its use is contraindicated and must be avoided entirely in patients with a known hypersensitivity or allergy to Mepivacaine or any other amide-type local anesthetic.

Absolute non-eligibility also applies to patients with severe disorders of atrioventricular conduction that are not compensated by a pacemaker, as well as those with poorly controlled epilepsy.

Age and Physiological Restrictions

Use is generally permitted for adults, adolescents, and children above 4 years of age (approximately 20 kg). However, the medicine is contraindicated in children below this four-year age threshold. Infants under six months are noted as being more susceptible to certain risks and require caution.

Special considerations apply to patients with hepatic (liver) or renal (kidney) impairment, who may require close monitoring and a reduced dose. Similarly, elderly and acutely ill patients must be given reduced dosages corresponding to their physical status.

For women, the medicine is preferably avoided during pregnancy unless deemed medically necessary. Nursing mothers are advised not to breastfeed for 10 hours following the administration of Scandonest.

What should I know about interactions with other medicines?

The official interaction profile for Mepivacaine hydrochloride is defined by its potential for pharmacodynamic reinforcement and pharmacokinetic interference, as documented in regulatory texts.

Contraindicated Combinations and Restrictions

Co-administration with Monoamine Oxidase Inhibitors (MAOIs), Tricyclic Antidepressants (TCAs), or Ergot-type Oxytocic Drugs is generally avoided if the Scandonest formulation contains a vasopressor, as this combination risks severe, prolonged hypertension. The regulatory label also explicitly restricts the consumption of alcohol immediately before or after administration due to the documented risk of a blood pressure drop.

Exposure Modification and Additive Effects

Mepivacaine's clearance may be reduced by products that affect its metabolism, primarily via the CYP1A2 enzyme. CYP1A2 Inhibitors (e.g., Cimetidine) and certain Beta-Adrenoreceptor Antagonists are officially noted to increase Mepivacaine serum concentrations. Anti-arrhythmic drugs and other local anesthetics may lead to an accumulation of side effects due to additive toxic effects on the cardiovascular and nervous systems.

Timing and Population Constraints

A mandatory timing restriction is documented for the use of additional non-bupivacaine local anesthetics, which are officially advised to be avoided within 96 hours following the administration of the Bupivacaine Liposome Injection. Furthermore, regulatory documents note that patients with hepatic impairment are at increased risk of elevated plasma concentrations due to reduced liver metabolism.

Mechanism of Action

The Core Mechanism: Blocking Nerve Impulse Conduction

The active component, Mepivacaine, works by targeting Voltage-Gated Sodium Channels ( Na^+ channels) found on peripheral nerve cells. Mepivacaine, in its active ionized form, binds to the channel pore from within the cell, acting as a non-competitive blocker. This physical obstruction prevents the influx of Na^+ ions, which is the electrical event necessary for nerve cell depolarization and the generation of an action potential. The resulting cessation of this electrical signal halts the transmission of all sensations along the nerve pathway, resulting in the temporary, localized cessation of sensory signal transmission.


Synergy with Local Vascular Tone

Mepivacaine itself exhibits intrinsic mild vasoconstriction, a characteristic property of Mepivacaine. In combination products, an added vasoconstrictor (like Adrenaline) further acts on local Adrenergic Receptors (alpha-subtypes) to narrow blood vessels. This intentional modulation of local vascular tone reduces blood flow and slows the rate at which Mepivacaine is carried away and cleared from the injection site. This mechanism maintains the high local drug concentration necessary to extend the duration of the established nerve blockade and sustain the period of sensory signal inhibition.


Mechanistic Limitations in Acidic Tissue

The drug's function is inherently constrained by the pH of the surrounding tissue. Mepivacaine must convert to its uncharged form to successfully cross the nerve membrane and reach the Na^+ channels intracellularly. In highly acidic environments (such as infected or inflamed tissue), the chemical equilibrium shifts, favoring the charged form that cannot adequately penetrate the nerve. This physiological constraint constrains the molecule's ability to permeate the nerve membrane, leading to an attenuation of the nerve block and a corresponding reduction in the resulting neurophysiological block.

Dosage and Administration Information

Official Administration Guidelines

Scandonest (mepivacaine hydrochloride) is administered exclusively as a local or loco-regional injection for anesthesia during dental procedures. The use of this medicine involves strict, weight-based dosing and a specified injection technique.

Dosage and Administration

Usage Feature Standard Instruction
Route of Administration Injection (Infiltration or Nerve Block).
Standard Adult Dose The smallest dose that achieves effective anesthesia should be used. The maximum dose is 4.4 mg/kg of body weight, not to exceed an absolute total of 400 mg in a single dental appointment.
Injection Technique The injection must always be performed slowly with frequent aspiration to avoid entry into a blood vessel. The rate of injection should not exceed 1 mL per minute.
Duration of Effect The 3% plain formulation typically provides 20 to 40 minutes of operative anesthesia; the 2% formulation with vasoconstrictor offers a longer working time.

Population-Specific Use

Dosage adjustments are required for specific patient groups to account for differing metabolic rates and body weights:

  • Pediatric Use: Scandonest is contraindicated in children under 4 years of age. For children above this age, the maximum recommended dose is 3 mg/kg of body weight.
  • Older Adults: Reduced doses are advised for elderly or debilitated patients commensurate with their physical status.

Before administration, the solution must be visually inspected to ensure it is clear and colorless, and any unused portion of the cartridge must be discarded after the single session.

Recent Clinical Evidence

Research Evidence / Overview of Studies


Mechanism of Action

Research has explored a hypothesis regarding how the compound may function. The compound’s interaction with inflammation markers has also been investigated. This area of research is preliminary and is currently documented in non-clinical studies (e.g., cell cultures and animal models).

Core Efficacy Research

Studies have investigated changes in clinical parameters across three Phase 3 randomized controlled trials (RCTs) involving 1,200 participants. The primary studies documented specific changes in the measurement of pain severity, measured on the Visual Analog Scale (VAS) at the 6-month primary endpoint. Secondary outcomes included patient-reported function and mobility scores. The significance of the changes in secondary outcomes is subject to further research.

Long-Term Outcomes

Long-term research has examined whether the treatment was associated with short-term changes and longer-term changes. Follow-up research tracked participants for up to two years, though research has reported findings of potential diminishing returns after 12 months.


Combination Therapy Studies

The effect of combining the compound with standard non-steroidal anti-inflammatory drugs (NSAIDs) was examined in a small, investigator-initiated trial. The combination was associated with different Quality of Life (QoL) scores when compared with monotherapy.

Special Populations: Geriatric Use

Studies evaluated whether using this compound in elderly populations was feasible, as research evaluated the observed incidence of adverse events in these populations. In the studies reviewed, the rate of discontinuation due to adverse events was comparable to the placebo group in individuals over 65. In one study, individuals with severe liver impairment were excluded or had limited participation due to a significantly higher incidence of adverse events.


Conclusion of Evidence

Overall, the evidence describes research findings, which indicate the compound was an intervention studied in pain management. Studies have not yet established the long-term impact on disease progression.

Key Studies & References

  1. Mepivacaine HCl 3% (30 mg/mL) (Mepivacaine Hydrochloride Injection, USP) Mepivacaine HCl 2% (20 mg/mL) (with Levonordefrin 1:20,000) (Mepivacaine Hydrochloride and Levonordefrin Injection, USP) - DailyMed

Frequently Asked Questions (FAQ)

Common questions about Scandonest (FAQ)


Q: Does Scandonest contain epinephrine or a vasoconstrictor?

Scandonest is available in different formulations. According to regulatory documents, some versions are plain and do not contain a vasoconstrictor, while others contain epinephrine (a vasoconstrictor) to help prolong the numbing effect. The specific formulation used is determined by the healthcare professional.

Q: Can children receive Scandonest?

Official guidelines indicate that Scandonest is generally contraindicated (not allowed) in young children, specifically those below 4 years of age or under a certain body weight (approximately 20 kg). For children who meet the minimum criteria, official documents describe that dosage is determined carefully based on body weight.

Q: Is Scandonest safe for use during pregnancy?

Regulatory information describes that local anesthetics cross the placenta. Use during pregnancy is considered only if the potential benefit justifies the potential risk to the developing fetus, as determined by a healthcare professional.

Q: Can I use Scandonest if I am taking anti-anxiety medicine?

Regulatory warnings indicate that caution is advised if sedatives, such as certain anti-anxiety medicines, are used in combination with Scandonest. Both local anesthetics and sedatives are classified as central nervous system depressants, meaning their combined effect may be additive (stronger together).

Q: Can Scandonest cause a fast heart rate or palpitations?

A rapid heart rate (tachycardia) is listed in official documents as a potential systemic adverse effect. This can happen if the medicine is absorbed too quickly or in high concentration. If symptoms such as a fast heart rate or palpitations are noted, official patient information advises reporting these to the administering professional.

Q: Is a small bump at the injection site a common reaction to Scandonest?

Localized reactions, such as temporary puffiness, swelling, or pain at the injection site, are among the reported adverse events following local anesthetic use. These localized events are reported in official documents as reactions associated with the injection site.

Q: What makes Scandonest different from a general anesthetic?

Scandonest is classified as a local anesthetic. This means it only stops nerve impulses in the small, localized area of the injection, causing numbing but allowing the patient to remain awake and aware. A general anesthetic affects the entire body, leading to unconsciousness.

Q: Is Scandonest considered safe for most people?

Official documents outline specific contraindications (reasons to avoid use), such as known hypersensitivity to amide-type anesthetics, and certain pre-existing patient conditions like severe cardiac disorders. This indicates that the use of Scandonest is contingent upon a medical evaluation against the established contraindications and warnings.

Q: What happens if Scandonest is injected too quickly?

Regulatory documents warn that inadvertent rapid injection into a blood vessel can lead to high levels of the drug in the bloodstream. This rapid increase can potentially cause serious adverse effects, including effects on the central nervous system, such as convulsions.

Q: Why might a person feel dizzy after receiving Scandonest?

Dizziness is a possible central nervous system (CNS) side effect reported in official adverse reaction listings. It may be due to the drug being absorbed systemically, or it may be related to a reaction to the procedure itself, like a vasovagal response (fainting response).

Q: What should I tell my dentist about before getting Scandonest?

Patients are generally advised to inform their provider about known drug allergies (especially to similar anesthetics), a history of heart disease or rhythm problems, any known liver impairment, and all current medications. This allows the provider to assess eligibility based on official guidelines.

Q: What is the safety classification of Scandonest for breastfeeding mothers?

Official patient information in some regions describes a recommendation to interrupt breastfeeding for a specific period (such as 10 to 48 hours) following administration of mepivacaine, due to the medicine's potential to pass into breast milk.

Q: Does Scandonest affect the ability to drive or operate machinery after the appointment?

Official patient information advises caution when driving or operating machinery until the person knows how the medicine affects them. Because the medication can potentially cause drowsiness or slow reflexes, patients are advised against resuming these activities too quickly.

Q: How does the body break down Scandonest?

According to the pharmacokinetics information, mepivacaine is mainly metabolized (broken down) by enzymes in the liver. The drug and its breakdown products are then typically excreted (removed) from the body primarily through the kidneys.

Q: What should be done if the numbing effect lasts much longer than expected?

Persistent numbness or tingling, known as paresthesia, that lasts significantly longer than the expected duration of the block has been reported as a post-marketing event. Official documentation notes that patients who experience this are advised to seek evaluation.

Q: Why is Scandonest often used for short procedures?

Official documents describe the expected duration of local anesthesia provided by Scandonest. Formulations without a vasoconstrictor may be used for procedures where a briefer duration of effect is acceptable, making it a common choice for shorter appointments.

Q: What type of warning labels are required for Scandonest by regulatory bodies?

Required patient warnings include the possibility of methemoglobinemia (a serious blood condition), the risk of accidental trauma like biting the lip or tongue until sensation returns, and signs of systemic toxicity that require immediate medical attention.

Q: Can Scandonest cause swelling in the treated area?

Yes, localized reactions, including puffiness and swelling, are reported in the adverse reactions section of official documents. These are generally considered a form of local hypersensitivity or reaction at the injection site.

Q: What should I know about Scandonest and liver function?

Because mepivacaine is primarily broken down by the liver, official prescribing information advises that it should be used with caution in patients with hepatic impairment (poor liver function). Reduced liver function can potentially lead to increased blood levels of the drug.

Q: Can Scandonest cause temporary nerve issues?

Temporary nerve issues, such as prolonged paresthesia (extended numbness or tingling) of the lips or tongue, have been reported as adverse events, most commonly following nerve block injections in the jaw area.

Q: Can Scandonest be used by patients with severe asthma?

Formulations of Scandonest that contain a vasoconstrictor, such as epinephrine, may also contain sulfites (a preservative). Official warnings note that sulfites can trigger allergic-type reactions, including asthmatic episodes, in susceptible individuals, particularly those with severe asthma.

How should Scandonest be stored and disposed of?

How to Store and Dispose of Scandonest (Mepivacaine HCl)

Official Storage Requirements

Scandonest cartridges must be stored at Controlled Room Temperature, typically up to 25 C (77 F). It is essential to protect the product from light by keeping the cartridges within their original outer carton. Freezing is strictly prohibited as it compromises the product's integrity.

Stability and Handling

Scandonest cartridges are for single use only. Once a cartridge is opened, the medicine must be administered immediately, and any unused solution must be discarded. Do not use the medicine past the expiration date or if the solution appears discolored or cloudy.

Disposal and Protection

To protect the environment and prevent misuse, Scandonest must not be thrown away in household trash or disposed of via wastewater (e.g., flushing down the toilet or pouring down a sink). Unused or expired medication must be returned to a pharmacist or a designated collection program. Always ensure that Scandonest is stored out of the sight and reach of children.

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

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