Citroplex

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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 Citroplex

Property Description
Active ingredient Sodium Ascorbate (Monosodium L-Ascorbate)
Form Oral solid forms (e.g., tablets) and Parenteral solutions
Pharmacological class Water-Soluble Vitamin; Antioxidant
Common use Prevention and correction of Vitamin C deficiency
Origin Derived (chemically synthesized salt)

Citroplex: Identity and Pharmacological Classification

Citroplex is a pharmaceutical preparation whose active ingredient is Sodium Ascorbate, classified as a water-soluble vitamin and an essential antioxidant. The compound is the monosodium mineral salt of L-Ascorbic Acid, widely recognized as Vitamin C. Its structure is defined as a derived entity—a buffered, non-acidic version of the vitamin. This specific formulation is clinically recognized for its improved patient tolerability, offering a gentler alternative for individuals sensitive to the acidity of standard Ascorbic Acid. As such, the compound serves as a crucial biological nutrient source.

The Sodium Ascorbate entity is available as a single-ingredient product, which directs its function toward systemic nutrient support. Its core chemical identity provides the full biological activity of Vitamin C through a stabilized salt form, manufactured across multiple high-level dosage forms, including oral solid forms and sterile, parenteral forms presented as injectable solutions.

General Role and Purpose of Sodium Ascorbate

The general therapeutic purpose of Citroplex is to ensure the body has sufficient Vitamin C to prevent and correct the systemic conditions resulting from deficiency, such as scurvy. Its physiological action is based on its primary function as a powerful antioxidant, which neutralizes free radicals, thus providing fundamental cellular protection.

Sodium Ascorbate is crucial as an essential cofactor for the synthesis of collagen. Adequate levels of this compound are necessary to maintain healthy tissue integrity and facilitate effective wound healing. Ultimately, the role of Citroplex is to support robust immune function and maintain healthy connective tissues throughout the body.

What side effects are possible with Citroplex?

Possible Side Effects and Safety Information

The safety profile of Citroplex (Sodium Ascorbate) is generally determined by the dose administered and the duration of exposure, as documented in official regulatory sources. Adverse reactions are often dose-dependent, meaning the chance of occurrence increases with higher intake, particularly those exceeding nutritional requirements.


Adverse Reaction Groupings

Side effects documented in regulatory labeling primarily fall into the following System Organ Classes:

  • Gastrointestinal Disorders: These are the most commonly reported effects at high doses and include abdominal cramps, diarrhea, nausea, and vomiting.
  • Renal and Urinary Disorders: A key safety concern involves the potential for calcium oxalate crystallization, which may lead to kidney stone formation (nephrolithiasis).
  • General Disorders: Includes local reactions like pain and swelling at the site of administration for injectable (parenteral) forms.

Serious Safety Considerations

The regulatory profile highlights specific, serious events that are classified as rare complications, mainly associated with prolonged, very high-dose use:

  • Oxalate Nephropathy: Severe kidney injury resulting from the accumulation of oxalate crystals, which is a metabolite of the compound.
  • Hemolysis: Severe breakdown of red blood cells, a risk specifically noted for individuals with Glucose-6-phosphate dehydrogenase (G6PD) deficiency.

Population-Specific Notes

The label advises particular consideration for specific patient groups. Individuals with pre-existing renal impairment or a history of oxalate kidney stones are noted to be at increased risk of oxalate accumulation and renal complications. Use is generally restricted in patients with diagnosed hyperoxaluria.

Overdose and Emergency Response

Overdose and When to Seek Help for Citroplex

Overdose information for Sodium Ascorbate (Citroplex) is based strictly on descriptions found in official regulatory documents. High-dose intake or overdose may result in transient gastrointestinal disturbances, including nausea, vomiting, diarrhea, and abdominal pain. Other documented manifestations include headache, fatigue, disturbed sleep, and flushing of the face.


Documented Severe Outcomes and Required Actions

The most serious regulatory concerns are linked to specific patient populations or chronic high exposure.

  • Renal Risk: A documented risk exists for nephrolithiasis (kidney stone formation) and oxalate nephropathy, particularly in individuals with pre-existing renal disease or a history of kidney stones.
  • Hemolysis Risk: Patients with Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency are at risk of severe oxidative hemolysis and disseminated intravascular coagulation (DIC) following high intake.

Emergency Action Statements

Official regulatory guidance requires that patients seek medical attention immediately if adverse symptoms occur after taking more than the intended dose. In cases of severe overdose, such as collapse or unresponsiveness, emergency services must be contacted. Management is generally symptomatic and supportive, as regulatory sources confirm that no specific antidote is known for Sodium Ascorbate overdose.

Therapeutic Uses of Citroplex

The following describes what types of symptoms Citroplex may assist with, the conditions for which it is commonly used, and the supportive benefits it provides.

The medication is used to help with depression, and is also considered relevant for managing symptoms associated with obsessive-compulsive disorder and panic disorder. These are condition categories for which the medication is generally considered relevant for symptomatic management.

Citroplex is primarily applied across domains where additional symptomatic support is needed to address significant and lasting feelings of sadness, chronic, overwhelming worry, and intrusive thoughts that lead to repetitive actions. It is often used during phases when symptoms become more noticeable or when functional stability is affected.

“This medication helps ease the burden of chronic, overwhelming worry and supports the patient during difficult episodes by easing distress.”

By addressing these symptom clusters, Citroplex offers symptomatic relief that may help patients cope more steadily with symptom fluctuations and assists with maintaining functional stability when symptoms interfere with routine activities.


Quick Fact: Relief for Mood and Worry

Citroplex helps manage symptom clusters related to persistent low mood and excessive worry, which commonly appear together in conditions characterized by periods of heightened symptoms.

Regulatory References

  1. NIH MedlinePlus overview of Citalopram

Eligibility and Restrictions for Use

Who Can and Cannot Use Citroplex? — Official Regulatory Information

Citroplex (or its active ingredient) is explicitly contraindicated (must not be used) for several populations as defined by regulatory bodies like the FDA and EMA:

  • Hypersensitivity: Patients with a documented allergy or hypersensitivity to the active ingredient (escitalopram or citalopram) or any other components of the medicine.
  • Specific Concomitant Drugs: Use is strictly prohibited with Monoamine Oxidase Inhibitors (MAOIs), including linezolid and intravenous methylene blue, or within 14 days of stopping an MAOI. Concomitant use with the antipsychotic agent pimozide is also contraindicated.
  • Cardiac Risk: It is contraindicated in patients diagnosed with a congenital long QT syndrome or those with known QT interval prolongation, and with other medicinal products known to prolong the QT interval.

Eligibility Restrictions and Cautionary Use

Use is restricted or requires caution in several other patient groups:

  • Age: The medicine is generally not recommended for use in children under 12 years of age for major depressive disorder (MDD) or under 7 years of age for generalized anxiety disorder (GAD), as safety and efficacy are not established in these younger pediatric populations. Older patients (65 years) may require a reduced maximum dose due to altered metabolism and potential risk of hyponatremia.
  • Organ Function: Caution and potential dose adjustment are necessary for patients with hepatic impairment and severe renal impairment.
  • Pregnancy and Lactation: Use during pregnancy is generally advised only if the potential benefit is considered to justify the potential risk to the fetus (FDA Category C). Caution is advised if administering to a nursing woman.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Citroplex, a formulation of Sodium Ascorbate (Vitamin C), has officially documented interactions categorized by regulatory authorities based on their mechanism and clinical consequence. This section provides an overview of these patterns as defined in government labeling.

Official Regulatory Classifications

Classification Interacting Agents Regulatory Constraint
Contraindicated Combinations Deferoxamine, Amygdalin Prohibited co-administration due to the risk of severe cardiotoxicity (in cardiac patients) or cyanide toxicity.
Pharmacokinetic Alteration Aluminum-Containing Antacids, Amphetamine May increase aluminum absorption leading to toxicity; decreases plasma levels of basic drugs due to urine acidification.
Pharmacodynamic Interference Oral Anticoagulants, Bleomycin May reduce the therapeutic response to anticoagulants; leads to in vitro inactivation of Bleomycin.

Interaction-Related Restrictions and Constraints

Co-administration with aluminum-containing antacids is generally not recommended, particularly for patients with renal impairment, due to the heightened risk of aluminum toxicity. Regulatory guidance advises separating doses by at least two hours to mitigate this risk. Furthermore, the official profile notes that high doses of the substance pose a formal risk of severe hemolysis in individuals with Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency and that substances like alcohol and nicotine are documented as inducing tissue desaturation of the compound.

Mechanism of Action

Targeting Serotonin Reuptake Mechanisms

Citroplex functions as a highly selective inhibitor of the serotonin transporter (SERT), a specialized protein on the presynaptic neuron. By binding to SERT and blocking the reabsorption of serotonin (5-HT), the drug increases the concentration of this neurotransmitter in the synaptic cleft, leading to increased serotonergic neurotransmission.


Modulating Receptor Sensitivity

The sustained increase in synaptic serotonin levels initiates a downstream mechanistic cascade, resulting in neuroadaptive changes over time. This includes the desensitization of certain presynaptic 5-HT auto-receptors (like the 5-HT1A receptor), which modulate serotonin release. This receptor modification leads to altered set-point dynamics within targeted neural pathways.


Regulating Signal Transduction

Beyond immediate transporter blockade, the drug influences long-term cellular adjustments, such as alterations in gene expression and increased levels of brain-derived neurotrophic factor (BDNF) in relevant brain regions. These effects modulate the activity of specific signaling pathways by modifying molecular substrates that mediate neuronal connectivity and adjusting the set-point of physiological signaling.

Dosage and Administration Information

Citroplex (Sodium Ascorbate) is used according to established principles defining the route, dose, frequency, and preparation requirements for the correction of Vitamin C deficiency. The administration modes include the oral route (tablets or chewable forms) and the parenteral route, which may be intravenous (IV), intramuscular (IM), or subcutaneous (Sub-Q). Parenteral administration is typically reserved for deficiency states when oral intake is not possible or is considered insufficient.


Dosing and Treatment Schedule

Administration dosage is differentiated by the use context. For the treatment of deficiency (scurvy), adult oral regimens are generally established at not less than 250 mg daily in divided doses, with a maximum of 1,000 mg daily. When the intravenous route is required, the adult dose is 200 mg once daily.

Pediatric administration is tiered based on age; for instance, infants aged 5 to less than 12 months are given 50 mg once daily via the IV route. For all patients, the maximum recommended duration for the daily intravenous treatment course is seven days.

Preparation and Administration Specifics

The concentrated parenteral solution must be diluted in a compatible infusion fluid prior to administration. The resulting solution must be delivered as a slow intravenous infusion to ensure correct usage, with specific infusion rates dependent on the patient's age and dose. Clinical guidance also specifies that the dosage for women who are pregnant or lactating should not exceed the Recommended Dietary Allowance for their specific age group and condition.

Recent Clinical Evidence

​Research Evidence / Overview of Studies for Citroplex (Sodium Ascorbate)


Evidence for the Prevention and Correction of Vitamin C Deficiency

The primary evidence base for Citroplex (Sodium Ascorbate) was studied for the state of Vitamin C deficiency (hypovitaminosis C) and the severe condition known as Scurvy. Much of this foundational evidence consists of historical pivotal trials and open-label reports that informed the understanding of the compound's role as a biological nutrient. Research examined the approach to addressing the nutrient imbalance. Findings describe patterns observed in which changes related to the deficient state were measured. This research describes the patterns of biochemical markers (Vitamin C levels in plasma) observed during the time intervals.

Study Focus: Symptoms and Biochemical Markers

Research explored specific outcomes related to systemic or functional imbalance. Studies monitored physical signs, such as gingival health and the rate of wound healing, which are relevant in trials assessing short-term symptom patterns. Researchers also measured changes in key biochemical markers, such as Vitamin C concentration in the blood, which are used to confirm or rule out deficiency status.


Long-Term Data and Extended Follow-up

For deficiency, research has explored short-term symptom changes but long-term effects are not fully established in controlled clinical studies. The follow-up durations were limited in many of the key studies. Evidence mostly describes patterns observed during the initial period of study, and there is limited information for long-term outcomes regarding the status of Vitamin C levels over many years.


What Remains Uncertain in the Research Landscape

The research base for Citroplex provides insight into the evidence landscape but is not without limitations. The foundational research for deficiency correction relies heavily on older, non-randomized pivotal data and general clinical observations, meaning evidence quality varies across studies compared to contemporary clinical trials. Comparative evidence is lacking in some areas of deficiency management.

Key Studies & References

  1. Ascorbic Acid and Sodium Ascorbate Monograph: Established Use and Dosing Information (Representation of Regulatory Documents)
  2. Guideline: Management of Scurvy in Adults and Children (Representation of Clinical Consensus)

Frequently Asked Questions (FAQ)

Common questions about Citroplex (FAQ)

Q: Is Citroplex the same kind of medicine as a common over-the-counter pill?

Citroplex is the brand name for Sodium Ascorbate, which is the salt form of Vitamin C. Official product information indicates that the active ingredient is available both in prescription injectable forms and in oral formulations. These oral forms are often marketed as nutritional supplements or over-the-counter products.

Q: Are there any special warnings for older people who use Citroplex?

Official warnings note that older patients (ge 65 years) may be at an increased risk for certain complications. This is mainly related to the potential for developing oxalate kidney stones (nephrolithiasis), especially when high doses are administered through the intravenous route.

Q: Can teens or children use Citroplex if their doctor prescribes it?

Yes, the injectable form of the medicine is indicated for use in pediatric patients starting from 5 months of age for the short-term treatment of scurvy, where oral use is not possible. Use in these populations is described in official documents, with administration requirements varying based on the patient's age.

Q: If I get a headache after taking Citroplex, is that considered a serious side effect?

Headache is a reported adverse effect, but it is classified as a less common side effect, particularly in those receiving the intravenous formulation. It is associated with nervous system effects. The labeling does not classify headache within the serious safety considerations, which typically include severe kidney issues or blood disorders.

Q: Are there any foods or drinks that should be avoided when taking Citroplex?

Official drug information indicates that there are no general food or drink interactions. However, regulatory documents describe a known interaction with aluminum-containing antacids, where the combination may increase the absorption of aluminum. Alcohol has also been documented to induce a temporary reduction in the compound’s concentration in tissues.

Q: If I'm pregnant, is Citroplex safe to take?

Official regulatory guidance advises that use during pregnancy should not exceed the U.S. Recommended Dietary Allowance (RDA) or daily Adequate Intake (AI) level for the compound. These limits are specific to the pregnant person’s age group and condition, as defined in official documents.

Q: What does official guidance say about using Citroplex while breastfeeding?

Official product information states that use in lactating women should not exceed the U.S. Recommended Dietary Allowance (RDA) or daily Adequate Intake (AI) level. These guidelines ensure that the intake of the compound remains within established nutritional parameters.

Q: Is Citroplex safe for people who have a history of heart issues?

The sodium content present in some Citroplex preparations is a factor that must be considered for people with heart conditions. Regulatory information notes that preparations containing sodium must be considered for individuals who have heart conditions and are following a sodium-restricted diet.

Q: How do I know if the medicine is working for me?

As the drug's approved use is for correcting a deficiency state, official research measured its effect by tracking the resolution of deficiency-related symptoms. In studies examining the correction of a deficiency, researchers monitored for patterns of change in symptoms such as lethargy, poor wound healing, and bruising.

Q: Why does the packaging list so many potential side effects?

Official labeling mandates the documentation of all adverse reactions observed during clinical use and post-marketing reporting, regardless of their frequency. Because many reported effects occur only with very high doses or in less than 1% of patients, the comprehensive list can appear extensive.

Q: Why is Citroplex used for conditions other than its main purpose?

The primary, regulatory-approved purpose of Citroplex is for the prevention and correction of Vitamin C deficiency. Some healthcare settings and researchers, however, explore the use of the active ingredient for other conditions, such as general nutritional support or in adjunctive care. These additional uses are not described in the official documents defining the approved purpose of the medicine.

Q: Is it normal to feel a bit drowsy when first taking Citroplex?

Unusual drowsiness or sleepiness is listed as a reported side effect of the medicine. Regulatory information classifies this as a less common occurrence, particularly when the drug is administered via the intravenous route.

Q: Is there a known link between Citroplex and weight changes?

Regulatory documentation reports both rapid weight gain and unusual weight gain or loss as less common side effects. It is noted that weight loss can also be a symptom observed in the underlying deficiency that the medicine is used to address.

Q: Can Citroplex affect my sleep schedule?

Yes, official drug information lists 'trouble sleeping' (insomnia) as a less common reported adverse effect of the medicine.

Q: Is it safe to take multivitamins while using Citroplex?

Available information suggests there are no known direct drug interactions between single-ingredient Vitamin C and a multivitamin. The active ingredient in Citroplex is often a component of approved multivitamin preparations itself.

Q: What kind of monitoring is recommended while taking Citroplex?

Specific patient populations may require monitoring during treatment. For instance, regulatory warnings advise that patients with Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency have a specific risk. Official warnings describe that monitoring of hemoglobin and blood count may be necessary for these patients.

Q: How long does Citroplex stay in your system after the last dose?

The compound is subject to rapid excretion. Regulatory information states that the compound is then largely eliminated via the kidneys and excreted in the urine within a few hours once plasma concentrations are no longer saturated.

Q: Is Citroplex a controlled substance?

Official regulatory bodies do not classify the active ingredient, Sodium Ascorbate (Vitamin C), as a controlled substance.

How should Citroplex be stored and disposed of?

How to Store and Dispose of Citroplex

Citroplex (Sodium Ascorbate) must be stored and disposed of according to specific regulatory requirements to ensure its stability and safety.

Storage Requirements

Condition Requirement
Temperature Store at controlled room temperature, typically 68 F to 77 F (20 C to 25 C).
Protection Keep from freezing and protect from light and moisture.
Container Store in the original, tightly closed container.
Safety Keep out of the sight and reach of children.

Disposal Instructions

Unused or expired Citroplex should not be flushed down the toilet or poured into a drain. Official instructions advise utilizing community drug take-back programs when available. If a take-back program is unavailable, mix the medicine with an unappealing substance, place it in a sealed bag, and discard it in the household trash.

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

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