Alkatel

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Alkatel

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

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 Alkatel

Property Description
Active ingredient Disodium Hydrogen Citrate
Form Oral Solution
Pharmacological class Urinary Alkalizer
Common use Modifying urine pH
Origin Synthetic chemical

What Type of Medicine is Alkatel?

Alkatel is a synthetic pharmaceutical preparation belonging to the Urinary Alkalizer pharmacological class, clinically recognized for its ability to systematically influence the acid-base balance of the urine. Its fundamental role is to alter the urinary pH, which is a crucial element in urological management. The active ingredient, Disodium Hydrogen Citrate, is the defining component. Such citrate compounds are established agents used to promote the alkalinization of urine.

Composition and Formulation: Disodium Hydrogen Citrate Oral Solution

Alkatel’s identity is tightly linked to its active agent, Disodium Hydrogen Citrate (also known as Disodium Citrate), which serves as an alkali-forming salt derived from Citric acid. This compound is metabolized into bicarbonate upon absorption. This particular drug is distinguished by its dosage form as an Oral Solution, specifically designed for ingestion. This liquid presentation is a differentiating factor, as it facilitates rapid systemic absorption and enables the consistent delivery necessary to maintain the targeted pH shift, as citrate in liquid form possesses high bioavailability.

General Purpose: Supporting Stability in Urinary Chemistry

The overall general purpose of administering this medication is to support chemical stability within the urinary tract environment by inducing urinary alkalinization. This increase in alkalinity is physiologically effective because it raises the solubility of certain poorly soluble compounds, specifically urate crystals. By reliably raising the urine pH, these substances enhance the solubility of uric acid. This process assists the body’s innate processes for managing and dissolving crystalline waste products, contributing to a more balanced and stable urinary tract chemistry.

What side effects are possible with Alkatel?

Possible Side Effects and Safety Information for Alkatel

Adverse reactions associated with Alkatel are documented and monitored through official pharmacovigilance processes, as mandated by government regulatory authorities such as the FDA and EMA. The official safety profile is continuously updated following the marketing authorization.

Adverse Reaction Scope

The most important safety considerations include both Adverse Drug Reactions (ADRs)—responses to the medicinal product that are noxious and unintended—and the proper reporting of potential manufacturing problems. All observed effects are categorized by the System-Organ Class affected (e.g., gastrointestinal, nervous system, cardiovascular) to maintain a comprehensive safety specification.

Serious Adverse Reactions (SARs), which are defined as outcomes such as death, life-threatening events, or those requiring hospitalization, are prioritized for immediate and mandatory reporting to the authorized governmental body. This ensures rapid risk assessment and the subsequent specification of any necessary contra-indications.

Frequency and Risk Classification

Adverse reactions are classified by frequency according to established regulatory standards, such as those typically aligned with ICH guidelines:

Frequency Term Incidence Rate
Very Common ge 1 in 10 patients (ge 10%)
Common 1 in 10 to 1 in 100 patients (1% to 10%)
Uncommon 1 in 100 to 1 in 1,000 patients (0.1% to 1%)
Rare 1 in 1,000 to 1 in 10,000 patients (0.01% to 0.1%)
Very Rare < 1 in 10,000 patients (< 0.01%)

All safety data recorded in official regulatory labels pertain only to effects where there is at least a reasonable possibility that they were caused by the drug. Information recorded includes patient demographics, drug dose, and duration of use, which helps to identify dose- or exposure-related safety patterns and population-specific safety considerations.

Safety-Related Restrictions

No medicinal product is without potential risks. The drug's regulatory documentation outlines safety restrictions and contra-indications that may be updated as post-marketing data accumulates. Healthcare institutions are obliged to notify the authorized governmental body about all cases of unknown adverse reactions immediately to ensure the integrity and completeness of the established safety profile. This ongoing process structures the official understanding of the drug's risks.

Overdose and Emergency Response

The regulatory documentation for Alkatel (Disodium Hydrogen Citrate) details the specific manifestations of overdosage, which result primarily from the excessive administration of alkali-forming sodium salts. Overdose may lead to the rapid onset of metabolic alkalosis and serious electrolyte disturbances, including hypocalcemia and hypokalemia.

Documented clinical presentations listed in official labeling include gastrointestinal distress such as nausea, vomiting, and diarrhoea, alongside systemic findings like edema. Severe manifestations can involve the central nervous system, characterized by hypernoia (excessive mental activity) and convulsions, as well as the potential for irregular heartbeat due to electrolyte imbalance.

Official guidance mandates that the patient seek emergency medical attention or call the Poison Help line immediately upon suspected overdosage. Treatment, for which no specific antidote is known, is defined as symptomatic and supportive. This involves procedural steps such as providing an adequate airway and ventilation and monitoring serum electrolytes, particularly serum bicarbonate levels. Patients with impaired renal function are noted in regulatory texts as a population at increased risk for severe overdose effects.

Therapeutic Uses of Alkatel

What Alkatel Treats: Main Uses and Benefits

The medication is commonly used in conditions that involve systemic or urinary acidity and require supportive management. It is applied in addressing conditions presenting with acute or disruptive symptom patterns related to crystallization, such as uric acid and cystine kidney stones, and is considered relevant in conditions involving chronic acid-base imbalances, such as Renal Tubular Acidosis (RTA).

The therapy plays a role in supporting the dissolution of existing uric acid stones and may assist with reducing the risk of new stone formation. It is also relevant for easing symptoms related to urinary discomfort and pain (dysuria) in situations where patients experience irritative states. This therapeutic application assists with maintaining functional stability when symptoms interfere with routine activities.


Therapeutic Focus: Acid-Related Symptoms

Alkatel contributes to improved day-to-day comfort during symptomatic periods in situations involving symptoms related to systemic imbalance, such as highly acidic urine, which supports patients during episodes of heightened discomfort related to acidic urine.

Regulatory References

  1. DailyMed (NIH) overview of Systemic Alkalizers

Eligibility and Restrictions for Use

Official Eligibility Rules for Alkatel

The eligibility for using Alkatel (Disodium Hydrogen Citrate Oral Solution) is strictly governed by regulatory classifications, primarily due to the drug's composition as an alkalizing agent and its effect on fluid and electrolyte balance. Eligibility is based on governmental prescribing information.


Populations Who Must Not Use Alkatel (Contraindications)

Official labeling mandates that Alkatel must not be used by individuals with specific health conditions to prevent severe complications, including:

  • Severe Renal Impairment: Such as oliguria (low urine output) or anuria (no urine output).
  • Severe Myocardial Damage or acute severe heart disease.
  • Hyperkalaemia (high potassium levels) or Untreated Addison’s Disease.
  • Patients on a Sodium-Restricted Diet.

Restricted and Conditional Use

Certain populations should only use Alkatel with caution and strict medical monitoring, as specified in regulatory warnings:

  • Compromised Kidney Function (where impairment is not severe enough for absolute contraindication).
  • Edematous Sodium Retaining States (e.g., congestive heart failure, severe hypertension).
  • Active Peptic Ulcer Disease or other severe stomach disorders.

Age and Reproductive Eligibility Status

Population Group Regulatory Status
Children under 6 Use is not established (limited data).
Pregnancy/Lactation Safety is not established. Use is restricted and only considered if benefits outweigh risks.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The regulatory interaction profile for Alkatel is defined by two primary domains: its effect on renal clearance and its impact on gastrointestinal absorption.

Interaction Scope and Restrictions

The concurrent use of Alkatel with Methenamine and its salts is officially contraindicated. This combination is prohibited because the drug’s urinary alkalinization action formally negates the acidic environment that Methenamine requires to become therapeutically active.

Alkatel affects the systemic exposure of medicinal products whose clearance is pH-dependent. Co-administration with basic drugs (such as Amphetamines and Quinidine) may decrease their urinary excretion, potentially resulting in an increase in plasma concentration. Conversely, co-administration with acidic drugs (such as Salicylates) may increase their urinary excretion, leading to decreased plasma concentration. These effects on concentration are classified as clinically significant.

Exposure Modification and Timing

The citrate component in Alkatel is documented to facilitate the enhanced gastrointestinal absorption of aluminum from aluminum-containing antacids. This increased systemic aluminum exposure is cited as a particular concern for elderly patients or individuals with renal insufficiency. To manage this interaction, regulatory guidance advises that aluminum-containing antacids should be avoided within a two-hour window before or after taking Alkatel. No formal interactions with food, alcohol, or herbal products are documented in official labeling.

Mechanism of Action

The Role of Bicarbonate Precursor Activity

Alkatel (Disodium Hydrogen Citrate) operates as a pH modulator via metabolic conversion. Once absorbed, the citrate component is processed primarily in the liver, where it enters the metabolic cycle and is converted into the key physiological anion, bicarbonate ( HCO3^-). This conversion modulates the acid-base balance by increasing the available bicarbonate in the systemic circulation.


Modulating Urinary Acid-Base Balance

This mechanism is applied to adjust activity within the renal excretory pathways. The increased systemic bicarbonate leads to greater filtered HCO3^- by the kidneys, which subsequently raises the pH of the urine, shifting it toward an alkaline state. This physiological adjustment is essential for altering the solubility characteristics of certain weakly acidic solutes present in the urine. This process results in a distinct shift in urinary pH within the renal excretory pathways.


Influencing Solubility and Crystallization Dynamics

The resulting alkaline urinary environment exerts a targeted effect on the physicochemical state of solutes by significantly increasing the ionization of specific weakly acidic solutes, such as uric acid and cysteine. The ionized forms are substantially more soluble in water than their non-ionized counterparts, a direct physiological consequence of the pH shift.

Dosage and Administration Information

The administration of Alkatel (Disodium Hydrogen Citrate Oral Solution) follows a specific process to ensure accurate, consistent use. The medication is intended for oral administration in its liquid form, consistent with its designation as a urinary alkalizer.

The standard adult dosing regimen typically ranges from 10 mL to 30 mL per dose, depending on the formulation and the required level of pH adjustment. This volume is generally administered four times daily (qid), with specific timing intended to coincide with after meals and once at bedtime. This frequent, scheduled pattern is established to maintain consistent systemic effects across a 24-hour period.

Standard preparation involves several steps prior to ingestion. The measured dose is diluted by mixing it into a glass of water or milk. Furthermore, the solution bottle is shaken well immediately prior to volumetric measurement. In specific populations, such as children aged 6 to 12 years, the labeled volume is reduced, typically to 10 mL or 15 mL per dose, administered three to four times daily. The product is used for continuous, long-term administration to sustain the desired chemical environment. If a scheduled dose is missed, instructions specify that it is not to be compensated for by doubling the next dose.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Alkatel

Official reviews of medicines in the urinary alkalizer class, which includes Disodium Hydrogen Citrate, focus on research that monitors changes in the body's acid-base balance. The evidence base primarily consists of randomized controlled trials (RCTs), systematic reviews, and studies observing patients over defined time intervals to track physiological changes and clinical outcomes.


Evidence for Uric Acid Stone Dissolution and Prevention

Research examined the physiological effects of the treatment, including shifts in urinary pH. Studies explored the relationship between biochemical changes and outcomes related to systemic or functional imbalance, such as stone formation. The research monitored clinical endpoints such as the stone-free status (complete stone disappearance confirmed by imaging) and the frequency of new stone formation over defined time intervals. Some trials monitored and reported changes in stone size, alongside stone-free status, over defined study periods. However, the evidence was observed in some studies to be heterogeneous because trials frequently study different citrate salts, and research focusing exclusively on Disodium Hydrogen Citrate's long-term performance is limited.

Evidence for Managing Acid-Base Imbalance in Renal Tubular Acidosis

Studies research examined the use of alkali therapy in patients with Renal Tubular Acidosis (RTA), a condition characterized by fluctuating or episodic manifestations. The primary outcomes research described were linked to systemic or functional imbalance, specifically tracking measured changes in serum bicarbonate levels in the blood. Research also monitored long-term outcomes, and was studied for associations with outcomes monitoring physiological strain or stress.

Research describes the use of alkali replacement as a key therapeutic approach for RTA. The evidence for this therapeutic goal is considered high, though direct, head-to-head comparisons of specific Disodium Hydrogen Citrate preparations versus other alkali agents are still emerging.

What Research Gaps and Uncertainties Remain

Scientific reviews note that comparative evidence is lacking for the specific Disodium Hydrogen Citrate formulation when directly measured against potassium citrate or sodium bicarbonate for specific stone prevention outcomes. Additionally, for acute outcomes relevant in trials assessing short-term or episodic symptom patterns, the evidence base relies significantly on older studies, contributing to low certainty regarding specific symptom relief.

Key Studies & References

  1. Systemic Alkalizers Drug Label Information (including information on Disodium Hydrogen Citrate or Disodium Citrate)

Frequently Asked Questions (FAQ)

Common questions about Alkatel (FAQ)


Q: What is the main reason doctors prescribe Alkatel?

Regulatory documents state that Alkatel is prescribed primarily as a systemic and urinary alkalizer. This means it is used to manage conditions like chronic metabolic acidosis, renal tubular acidosis (RTA), and to help dissolve or prevent certain types of kidney stones (urolithiasis).

Q: Is Alkatel safe to take long-term?

Official documents state that Alkatel is intended for continuous, long-term administration. It is generally well tolerated when kidney function is normal. However, for patients with kidney disease, official guidance requires periodic monitoring of serum electrolyte levels during prolonged use.

Q: How long does it usually take to feel the effects of Alkatel?

According to the official product information, the medicine is rapidly absorbed due to its liquid formulation and mechanism. The onset of its effect is generally considered to be quick, sometimes occurring within minutes of intake.

Q: What are the most commonly reported side effects of Alkatel?

The most commonly reported effects involve the digestive system, including nausea, vomiting, diarrhea, abdominal pain, or stomach cramps. Regulatory information notes that diluting the dose with water and taking it after meals can often help reduce these effects.

Q: Are headaches a common side effect of Alkatel?

Yes, headache is listed in the regulatory documentation as one of the commonly reported adverse reactions for adults using this medicine.

Q: What are the less common, but serious, side effects listed for Alkatel?

The most serious, less common effects are related to the risk of severe electrolyte imbalances that can result from excessive alkalinization. These potential serious events include hypocalcemia, hypokalemia, cardiac arrhythmias (irregular heartbeat), and convulsions.

Q: Is it normal to feel tired when starting Alkatel?

The official safety profile indicates that tiredness (fatigue) is a possible symptom of metabolic alkalosis, which is a risk if the medicine is administered in excess. This is not listed as a common effect in all patients at recommended doses, but is a possibility related to systemic imbalance.

Q: Is Alkatel known to affect mood or anxiety?

Mood changes are listed in the official safety profile as a potential symptom of metabolic alkalosis, a condition that can result from excessive administration of the medication.

Q: Does Alkatel affect sleep patterns?

Specific regulatory information does not list effects that directly alter sleep patterns. However, related symptoms of excessive administration, such as tiredness and mood changes, are noted to be possible signs of metabolic alkalosis.

Q: Can Alkatel be taken with pain relievers?

Alkatel may be taken with certain pain relievers, but it can affect their concentration in the body. For acidic drugs like Salicylates (a class of pain relievers), official sources indicate that Alkatel can increase their excretion, which may potentially decrease their effect.

Q: Are there any known issues with Alkatel and liver or kidney function?

Yes, official prescribing information lists known issues. It is contraindicated (must not be used) in cases of severe kidney impairment. Use requires caution in patients with pre-existing liver impairment, as the liver is essential for processing the active ingredient.

Q: Is Alkatel appropriate for older adults?

Official documents note that older adults, especially those with kidney issues, are identified as a population requiring caution. This is primarily due to the risk of enhanced aluminum absorption if the medicine is taken concurrently with aluminum-containing antacids.

Q: Has Alkatel been studied in children or adolescents?

Official dosing guidelines exist for children aged 6 to 12 years. Dosing for children under two years is managed by physician consultation, suggesting established use under medical supervision.

Q: How long does Alkatel stay in your system generally?

Pharmacokinetic studies estimate the elimination half-life of the active ingredient to be approximately 4 to 6 hours. This indicates the time it takes for half of the dose to be cleared from the system.

Q: Are there any warnings about driving while taking Alkatel?

Official regulatory documentation states that no special precautions are required regarding the patient's ability to drive or operate machinery while taking this medicine.

Q: Why is Alkatel sometimes given with another medicine?

Alkatel is sometimes given alongside certain antibiotics (like sulphonamides) during urinary tract infections. This is because the resultant alkalinization of the urine is intended to support the therapeutic action of those specific antimicrobial agents, as described in regulatory text.

Q: Where can I find the official regulatory information about Alkatel?

Official regulatory information, such as the full prescribing label or Summary of Product Characteristics, is published on government-run websites. Examples include the FDA DailyMed (for the U.S.) or national European Medicines Agency (EMA) / MHRA websites (for Europe/UK).

Q: Are there specific tests required before starting Alkatel?

Regulatory precautions advise that for patients with kidney disease, periodic determinations of serum electrolytes are recommended. This suggests that an initial check and ongoing monitoring are often necessary to prevent complications.

How should Alkatel be stored and disposed of?

How to Store and Dispose of Alkatel

Storage Conditions

Alkatel (Disodium Hydrogen Citrate Oral Solution) must be kept at Controlled Room Temperature, typically 20 C to 25 C (68 F to 77 F). The medication must be stored in a well-closed container and protected from environmental factors. Regulatory guidelines strictly require the product to be kept out of the sight and reach of children and stipulate that the solution must not be frozen.

Storage Constraint Requirement
Temperature Store at 20 C–25 C (Do not freeze)
Packaging Keep container tightly closed
Protection Avoid excess heat and moisture

Disposal Instructions

Unused or expired Alkatel should be disposed of through a dedicated drug take-back program if one is available. If not, follow general health authority guidelines for household disposal: mix the product with an undesirable substance, place it in a sealed bag or container, and discard it in the trash. Disposal must not allow the product to enter drains or wastewater.

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

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