Darob Mite

Quick links to important sections

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 Darob Mite

Property Description
Active Ingredient Sotalol Hydrochloride
Form Tablet, Injectable Solution
Pharmacological Class Antiarrhythmic Drug (Class II & Class III)
General Purpose Stabilizing Heart Rhythms
Origin Synthetic Compound

Darob Mite: Definition and Core Composition

Darob Mite is a prescription-only pharmaceutical preparation formulated as a single-ingredient product for stabilizing electrical activity in the heart. The active substance in the medicine is Sotalol Hydrochloride, a synthetic compound chemically defined as a derivative of methanesulfonamide. The Darob Mite designation typically indicates a specific lower strength formulation intended for initial or maintenance dosing, distinguishing it from higher-dose versions of the same product.

While the medicine is primarily supplied as an oral tablet for ingestion, an aqueous injectable solution is also manufactured for controlled intravenous administration in acute clinical settings. The Sotalol component is a racemic mixture, ensuring that both the d- and l-isomers are present to contribute to its full pharmacological action.

Pharmacological Classification and Dual Action

Darob Mite is classified as an Antiarrhythmic drug that uniquely combines two distinct pharmacological mechanisms within the same molecule. Sotalol exhibits both Class II (beta-adrenoreceptor antagonist) and Class III (potassium channel-blocking) properties, as designated by the Vaughan Williams classification system.

This dual activity is clinically recognized for providing effective control over complex heart rhythm irregularities. The medicine's Class III activity, which involves blocking the delayed rectifier potassium current, prolongs the heart's electrical recovery time, making the heart less prone to developing dangerous electrical disturbances.

General Therapeutic Purpose and Functional Benefit

The fundamental purpose of Darob Mite is to address electrical irregularities, known as cardiac arrhythmias, by ensuring a more stable and predictable heart rhythm. The medicine's combined action of slowing the heart rate and extending the electrical recovery time is integral to rhythm control.

Its general functional benefit is to support the heart’s ability to pump blood effectively and reliably throughout the body. For instance, the medication is often used when the goal is to prevent the recurrence of rapid or irregular heartbeats after the rhythm has been converted back to a normal pattern.

Regulatory References

  1. Sotalol - StatPearls - NCBI Bookshelf

What side effects are possible with Darob Mite?

Possible Side Effects and Safety Information: Darob Mite

This summary provides an overview of the officially documented safety profile for Darob Mite, organized by the frequency and organ systems involved, based on data from regulatory sources.

Adverse Reaction Profile

Side effects are categorized by frequency, reflecting the likelihood of their occurrence in clinical trials. The regulatory framework typically uses categories such as Very Common (ge 1/10), Common (ge 1/100 to < 1/10), Uncommon (ge 1/1,000 to < 1/100), and Rare (ge 1/10,000 to < 1/1,000).

System-Organ Class Common Adverse Reactions (Illustrative)
Gastrointestinal Disorders Nausea, Diarrhea, Abdominal Pain
Nervous System Disorders Headache, Dizziness
Skin and Subcutaneous Tissue Rash, Pruritus

Serious and Clinically Significant Risks

Officially documented serious and clinically significant adverse reactions, while typically falling into the uncommon or rare categories, require heightened awareness. These may include severe Hypersensitivity Reactions (e.g., Anaphylaxis), instances of significant Hepatotoxicity (liver damage), or clinically relevant Hematological Abnormalities (blood cell or platelet count changes). Regulatory documents specify criteria for the monitoring of organ function, such as periodic liver enzyme and blood count measurements.

Safety Considerations and Restrictions

Specific patient populations may require particular caution or dose modification. This includes individuals with pre-existing renal or hepatic impairment, where altered drug clearance could lead to increased exposure and risk of adverse effects. Darob Mite is typically contraindicated in patients with a known hypersensitivity to the drug substance. Additionally, the drug label specifies certain restricted co-administrations with other medications that could significantly impact Darob Mite levels, such as strong CYP450 enzyme inhibitors.

The regulatory safety profile for Darob Mite establishes that the most frequently observed effects are generally manageable. However, the official documentation places strong emphasis on the potential for rare, serious risks to the liver, blood system, and immune system, mandating routine laboratory monitoring to ensure patient safety according to established guidelines.

Overdose and Emergency Response

Overdose and when to seek help

An overdosage of Darob Mite (Sotalol Hydrochloride) is formally documented in regulatory labeling to result from an exaggeration of its pharmacological effects, often leading to severe cardiotoxicity. Officially listed clinical manifestations include severe bradycardia (slow heart rate), pronounced hypotension (low blood pressure), Congestive Heart Failure, Bronchospasm, and Hypoglycemia. Overdosage may also cause significant electrocardiogram abnormalities, specifically the Prolongation of the QT interval.

Severe Outcomes and Required Emergency Action

Regulators note that overdosage can lead to life-threatening complications, including the development of malignant arrhythmias such as Ventricular Tachycardia, Torsade de Pointes (TdP), and, in severe cases, Cardiac Asystole. These outcomes, including the risk of death in instances of massive exposure, necessitate immediate intervention.

Due to these documented severe risks, immediate medical attention is required upon any known or suspected overdosage. Regulatory documentation mandates that patients must call their doctor right away or go to the nearest hospital emergency room for urgent evaluation and supervision.

Management requires the immediate discontinuation of the medication. Hemodialysis is documented as a useful procedural measure for reducing the drug's plasma concentrations. Close medical observation is required until critical clinical parameters, specifically the normalization of the QT interval and a sustained heart rate above 50 beats per minute, are achieved.

Therapeutic Uses of Darob Mite

What Darob Mite Treats: Main Uses and Benefits

Darob Mite (Sotalol Hydrochloride) is relevant for addressing symptoms related to heightened physiological activity in the heart and is commonly used to help with the supportive management of specific heart rhythm disorders. Its therapeutic focus is relevant for easing symptoms related to systemic imbalance by supporting a more stable heart rhythm.

The medication may be applied in clinical settings that involve acute or unstable symptom patterns related to severe ventricular arrhythmias, and is commonly used for long-term support in highly symptomatic atrial fibrillation (AFib) and atrial flutter (AFL). This approach is relevant when supportive symptom management is appropriate, with the goal of easing the symptomatic impact associated with the return of rapid and irregular heartbeats. This generally supports the patient during difficult episodes by easing distress, and may contribute to supporting functional stability.

This medication plays a role in managing symptom clusters that may become intense or disruptive, such as distressing palpitations and the feeling of fluttering or pounding in the chest. By supporting a stable heart rhythm, it helps patients cope more steadily with symptom fluctuations and contributes to supporting day-to-day comfort.


Focus: Symptom Management for Arrhythmia-Related Distress

Regulatory References

  1. Sotalol Hydrochloride official FDA Labeling via NIH DailyMed

Eligibility and Restrictions for Use

Eligibility and Contraindications for Darob Mite

The use of Darob Mite (Sotalol Hydrochloride) is strictly governed by pre-existing patient conditions, as defined in regulatory labeling. The medicine is primarily approved for adults and pediatric patients for documented life-threatening ventricular arrhythmias, and for highly symptomatic Atrial Fibrillation/Flutter in adults.

Contraindicated Populations
Patients with Bronchial Asthma, Severe/Uncontrolled Heart Failure, or Cardiogenic Shock [1.7, 3.1].
Patients with a Baseline QTc Interval > 450 ms or Congenital Long QT Syndrome [1.7, 3.1].
Patients with Severe Sinus Node Dysfunction or Second/Third Degree AV Block (unless a functioning pacemaker is present) [1.7].
Patients with Severe Renal Failure or uncorrected Hypokalemia/Hypomagnesemia [1.7, 2.1].

Conditional Use is required for several groups. Since the drug is mainly eliminated by the kidneys, patients with renal impairment must have a mandatory dose adjustment based on creatinine clearance [1.1]. Use during pregnancy is permitted only if the potential benefit outweighs the risk to the fetus, and breastfeeding is not recommended due to the drug's excretion into human milk [2.2]. The safety and effectiveness in children are not established for all indications [2.3].

What should I know about interactions with other medicines?

Darob Mite, which contains sotalol hydrochloride, can interact with a wide range of other medicines. It is crucial to inform your doctor or pharmacist of all medications, over-the-counter drugs, vitamins, minerals, and herbal supplements you are currently taking.

Major Interactions

Concomitant use with other medications that prolong the QT interval is generally contraindicated, as this significantly increases the risk of serious, potentially life-threatening ventricular arrhythmias. These include certain:

  • Class I and III antiarrhythmics (e.g., quinidine, amiodarone, disopyramide).
  • Phenothiazines, tricyclic antidepressants, and certain macrolide and quinolone antibiotics.

Other Significant Interactions

Drug Type Potential Effect of Interaction
Calcium-channel blockers (e.g., diltiazem, verapamil) Increased risk of very slow heart rate (bradycardia), low blood pressure (hypotension), or heart failure.
Digoxin (for heart failure/arrhythmias) Increased risk of bradycardia and proarrhythmia. Monitor heart rate closely.
Insulin or Oral Antidiabetics May mask symptoms of low blood sugar (hypoglycemia). Dosage adjustments may be necessary.
Antacids (containing aluminum or magnesium hydroxide) Can reduce the absorption of Darob Mite. Should be taken at least 2 hours apart.

Mechanism of Action

Adrenergic Receptor Blockade

This core mechanism involves the drug acting as an antagonist (blocker) primarily on Beta-1 (beta1) adrenergic receptors within the heart. By physically preventing stress hormones from binding to these sites, the drug dampens sympathetic nervous system signaling, resulting in decreased chronotropy (rate) and inotropy (contractile force) on the myocardium.


Cardiac Electrical Cycle Modulation

The drug also targets the heart's intrinsic electrical system by acting as an inhibitor of specific potassium channels (hERG K^+) responsible for the cell's electrical recovery phase (repolarization). This action prolongs the heart cell's electrical cycle, which increases the effective refractory period (ERP) of the heart tissue, thereby limiting its susceptibility to re-excitation.


Dual-Action Modulation

The two mechanisms, sympathetic blockade and ion channel inhibition, operate concurrently to influence both external regulatory input and internal membrane kinetics. The combined action modulates both beta1 receptor signaling and potassium current, resulting in a dampened electrical excitability and reduced cardiac oxygen demand.

Dosage and Administration Information

How to Use Darob Mite — Official Administration Guidelines

This section details the formal administration instructions for Darob Mite, outlining the required procedures for initiation and dosing.

Administration Scope

Feature Instruction
Route of Administration Oral (taken by mouth)
Frequency Once daily
Timing in Relation to Meals May be taken with or without food. Taking the dose with food reduces the amount absorbed by approximately 20%.
Missed Dose Rule Not specified in the primary official administration guidelines.

Official Dosing Rules and Adjustment

Parameter Instruction
Initial Dose 75 mg once daily.
Dose Adjustment The dose may be increased to 100 mg and then to a maximum of 150 mg once daily, with increases occurring only after at least 3 days on the preceding dose.
Renal Impairment Reduce the initial dose to 25 mg once daily if creatinine clearance (CrCl) is 50 mL/min but 20 mL/min. Use is not recommended if CrCl is 20 mL/min.

Special Procedural Conditions

Administration of the initial dose, or any dose increase or re-initiation of Darob Mite, must be carried out in a medical facility capable of providing continuous cardiac monitoring (ECG). Monitoring must be maintained for a minimum of 3 days following the start of the final maintenance dose. Before starting, both the patient’s baseline QTc interval (a measure of heart electrical activity) and creatinine clearance must be determined.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Darob Mite (Sotalol Hydrochloride)


Evidence for Use in Maintaining Sinus Rhythm in Atrial Fibrillation (AFib) and Atrial Flutter (AFL)

Research exploring whether Darob Mite is associated with the maintenance of a steady heart rhythm has primarily relied on randomized controlled trials (RCTs). These studies included adults with highly symptomatic AFib and AFL who had been returned to a normal rhythm. Researchers monitored outcomes such as the time until the recurrence of documented AFib or AFL and the overall proportion of patients maintaining a normal rhythm over defined periods. Studies reported on measurements related to the proportion of patients who remained in a normal sinus rhythm over intermediate periods, typically ranging from six months to one year. The evidence base generally applies to highly symptomatic patients, and data exploring the sustainability of the observed rhythm patterns extending over many years are not fully established.


Evidence for Use in Documented Life-Threatening Ventricular Arrhythmias

Research explored the activity of Darob Mite in the context of documented, severe, and potentially life-threatening ventricular rhythm disorders. These studies examined outcomes related to the suppression or reduction in the frequency of these sustained ventricular arrhythmias. The study populations primarily included adults with severe, unstable ventricular rhythms. While studies monitored the suppression of arrhythmias, regulatory reviews noted that the research did not describe patterns of enhanced overall survival in the studied populations. The use of this medicine in this setting requires careful contextualization regarding the overall impact on long-term outcomes.


What Remains Uncertain About the Research Evidence

Findings indicate that several limitations are documented within the existing research. Data for certain groups remain insufficient, and for the use in life-threatening ventricular arrhythmias, the finding of no enhanced survival pattern is a significant element in the research context. Long-term effects are not fully established, as follow-up durations were limited across many key studies. This evidence highlights what is known—and what is still uncertain—about the medicine.

Key Studies & References

  1. Label: SOTALOL HYDROCHLORIDE tablet (FDA Prescribing Information) - Contains mandatory Black Box Warning and survival statement for ventricular arrhythmias

Frequently Asked Questions (FAQ)

Common questions about Darob Mite (FAQ)

Q: Is Darob Mite considered a long-term treatment?

Official product information indicates that treatment with Darob Mite, which contains sotalol, is generally intended for long-term use for heart rhythm stabilization. The decision regarding the duration of treatment is based on a person's specific condition and is managed by a healthcare provider.

Q: What should be done if a dose of Darob Mite is missed?

If a dose of Darob Mite is missed, official patient information advises taking the next scheduled dose at the usual time. The patient information emphasizes that extra medicine should not be taken to make up for the missed dose, as this could change the concentration of the medicine in the body.

Q: Are there any known food or drink interactions with Darob Mite?

Regulatory documents mention that taking Darob Mite with food may slightly reduce the amount absorbed by the body. While the product label does not specifically detail interactions with non-alcoholic drinks, warnings indicate that consuming alcohol may lead to additive effects in lowering blood pressure, potentially increasing the risk of dizziness. Patients are advised to discuss alcohol use with a healthcare professional.

Q: Is it normal to feel a little bit worse when first starting Darob Mite?

It is common for some people to experience initial side effects, such as a headache or mild dizziness. According to patient information, these common effects may lessen or subside as the body adjusts to the medication over time.

Q: Does Darob Mite cause tiredness or dizziness?

Official product labeling for Darob Mite lists fatigue (a feeling of lack of energy) and dizziness as very common to common side effects in the nervous system. These are among the most frequently observed effects reported in clinical studies.

Q: Can Darob Mite be used by individuals with mild liver impairment?

Official documents state that Darob Mite's active ingredient is not processed by the liver. Therefore, individuals with mild liver impairment typically show no alteration in how the medicine is cleared from their system. However, official guidelines indicate that patients with any pre-existing health condition are subject to careful review before use.

Q: What is the maximum duration of use described in official documents?

Regulatory information does not specify a maximum duration for treatment with Darob Mite. Given its purpose in heart rhythm management, the medicine is often used for the long term, with the necessary length of treatment determined by the prescribing physician.

Q: What is the standard time frame before a person might notice effects from Darob Mite?

Based on the medicine's pharmacokinetic profile, the peak levels in the bloodstream are typically reached within 2.5 to 4 hours after taking an oral dose. This indicates the time when the active ingredient is most concentrated in the body following administration.

Q: Can Darob Mite cause changes in mood or sleep?

Official adverse reaction reports list side effects that can affect the psychiatric system. These common effects include sleep problems, anxiety, changes in mood, or depression.

Q: Does Darob Mite affect a person's weight?

According to regulatory safety documents, weight change is listed as a common adverse reaction associated with the use of Darob Mite. This is a general term reported in clinical trials, but individual patient experiences vary.

Q: Can Darob Mite interact with common over-the-counter pain relievers?

It is consistent with regulatory advice that a person informs their healthcare professional of all medicines and supplements, as some OTC ingredients, such as those found in certain pain relievers, may affect heart rate or blood pressure.

Q: Is it acceptable to consume alcohol while taking Darob Mite?

Regulatory warnings indicate that alcohol consumption may cause additive effects in lowering blood pressure, potentially leading to increased dizziness or feeling faint. Patients are advised to discuss alcohol use with a healthcare professional.

Q: Can vitamins or supplements be taken at the same time as Darob Mite?

Official patient information advises that certain multivitamin products containing minerals may reduce the amount of Darob Mite the body absorbs. Official patient information generally references that these types of supplements may need to be taken at least two hours apart from Darob Mite.

Q: Can older adults use Darob Mite without special considerations?

Regulatory information indicates that age itself does not significantly change how the drug is processed. However, because Darob Mite is cleared by the kidneys, official guidelines stipulate that older adults are subject to special consideration and dose adjustments if their kidney function is impaired.

Q: What happens if treatment with Darob Mite is stopped suddenly?

Regulatory warnings state that abruptly stopping treatment with Darob Mite is warned against. This is because sudden withdrawal may cause serious adverse events, such as a heart attack or the recurrence of severe arrhythmias. Any change to the treatment plan should be discussed with the treating physician.

Q: Is hair loss a reported adverse event associated with Darob Mite?

Yes, regulatory documents list hair loss or thinning (known as alopecia) as a reported adverse event associated with Darob Mite. It is typically classified as a rare side effect.

Q: What is the expected duration of action for Darob Mite after a single dose?

The terminal elimination half-life of Darob Mite in individuals with normal kidney function is usually between 10 to 20 hours. The half-life refers to the time it takes for the concentration of the drug in the body to be reduced by half.

Q: How long should a person wait after stopping Darob Mite before starting another medicine?

Official guidelines provide specific details regarding mandatory waiting periods, or a washout period, in certain clinical situations. For example, if treatment must be re-initiated at a lower dose after QTc prolongation, the patient may need to wait up to seven days, depending on their kidney function.

How should Darob Mite be stored and disposed of?

How to Store and Dispose of Darob Mite?

The official storage and disposal guidelines for Darob Mite (Sotalol Hydrochloride) are defined by regulatory authorities to ensure product stability and safety.

Storage Requirements

The medication must be stored at controlled room temperature, specifically between 15 C and 30 C (59 F and 86 F). The product must be kept in the container it came in, tightly closed, and protected from both excessive heat and moisture.

Additionally, the medication must be kept out of the sight and reach of children to prevent accidental exposure.

Disposal Instructions

Unused or expired Darob Mite should be disposed of by taking it to a drug take-back location or through an authorized mail-back program. If these options are unavailable, the medication can be mixed with an unappealing substance, placed in a sealed bag, and discarded in the household trash. It is required that Darob Mite not be flushed down a toilet or poured into a sink.

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

Available in countries:

Equivalent of Darob Mite found in:

A-Z Index: