Aquasol A

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Aquasol A

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Medically reviewed

Laura Arias

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 Aquasol A

Quick Facts

Property Description
Active ingredient Vitamin A (Retinol/Retinyl Palmitate)
Form Water-miscible (Aquasolized) Solution / Softgel Capsule
Pharmacological class Therapeutic Vitamin Supplement / Fat-Soluble Vitamin
Common use Treatment of Vitamin A Deficiency (Hypovitaminosis A)
Origin Synthetic (Processed for enhanced absorption)

What is Aquasol A?

Aquasol A is a prescription-only medicine whose active ingredient is synthetic Vitamin A (retinol), classified as a therapeutic vitamin supplement. It functions as a single-ingredient product, providing a concentrated source of this essential nutrient for clinical treatment. The high potency and formalized status ensure its use is reserved for therapeutic intervention in diagnosed deficiencies, setting it apart from routine, low-dose nutritional supplements.

Composition and Forms: The Water-Miscible Difference

The differentiating feature of Aquasol A is its innovative aquasolized formulation, a specialized process that converts the naturally fat-soluble Vitamin A into a water-miscible preparation. This modification is medically significant as it allows the body to readily absorb the nutrient, bypassing the need for full fat digestion. The product, delivered in an aqueous base, uses a micellar structure to effectively pre-solubilize the active ingredient. It is available in various dosage forms, including an oral liquid aqueous solution, softgel capsules, and a parenteral solution for intramuscular administration.

General Purpose: Why is this High-Potency Vitamin A Used?

The general purpose of Aquasol A is to function as a crucial nutritional factor used to correct confirmed states of Vitamin A deficiency, or hypovitaminosis A. This specialized preparation delivers high-potency Vitamin A with enhanced bioavailability, which is necessary for individuals with malabsorption disorders or those who cannot reliably absorb conventional, oil-based forms of the vitamin. This specialized delivery ensures that the body's fundamental requirements for vision, immune function, and epithelial integrity can be rapidly and effectively supported.

What side effects are possible with Aquasol A?

Possible Side Effects and Safety Information

The safety profile for high-potency prescription Vitamin A, such as Aquasol A, is primarily structured around the potential for Hypervitaminosis A, which is toxicity resulting from excessive intake or prolonged accumulation. The manifestations of this syndrome constitute the majority of documented adverse reactions listed in official regulatory documents.

Adverse effects are officially grouped by the organ systems they affect and are largely classified as incidence not known for general therapeutic use, except for serious reactions like anaphylactic shock (reported rarely with intravenous administration).

System-Organ Class Officially Documented Manifestations of Toxicity
Nervous System Headache, irritability, increased intracranial pressure (pseudotumor cerebri), drowsiness.
Skin & Subcutaneous Tissue Hair loss (alopecia), severe dry or cracked skin (xerosis), fissures of the lips.
Hepatobiliary Signs of hepatotoxicity (liver injury), hepatomegaly (enlarged liver), jaundice.
Musculoskeletal Joint and bone pain (arthralgia), slow growth, premature closure of the epiphyses in children.

Serious adverse reactions documented in regulatory sources include severe systemic toxicity (Hypervitaminosis A), liver failure, and life-threatening allergic responses. The severity of these effects is explicitly linked to dose and duration, with long-term high-dose use being associated with conditions like chronic hepatotoxicity and bone changes.

Population-Specific Safety Considerations: The use of high-dose Vitamin A is contraindicated in women who are or may become pregnant due to the established risk of fetal harm (teratogenesis). Specific risks are also noted for older adults (increased risk of osteoporosis and hip fracture) and pediatric patients (increased susceptibility to toxicity).

Overdose and Emergency Response

The official regulatory documents describing overdose for Aquasol A (Hypervitaminosis A) list distinct clinical signs for acute and chronic toxicity. Acute toxicity, typically following a massive single ingestion, may include severe headache, dizziness, vomiting, and skin peeling. Chronic toxicity, resulting from prolonged high intake, is documented to manifest as joint or bone pain, hair loss, fatigue, and signs of potential hepatotoxicity (e.g., jaundice).

Regulatory information identifies several severe or life-threatening outcomes. These include increased intracranial pressure, which may present as a bulging fontanelle in infants, and the risk of fetal harm if an overdose occurs during pregnancy. Furthermore, high-dose exposure is associated with an increased risk of osteoporosis and fracture, particularly in postmenopausal women.

In the event of a known or suspected overdose, regulatory authorities mandate that patients seek emergency medical attention immediately and contact a Poison Help line. Treatment is officially defined as symptomatic and supportive management following the necessary and immediate discontinuation of the medication. Specific warnings note that the water-miscible formulation of Aquasol A may carry a greater toxicity risk, and patients with existing liver or renal disease are identified as being at heightened risk of toxicity.

Therapeutic Uses of Aquasol A

Main Uses and Benefits of Aquasol A

Aquasol A is a water-miscible preparation of vitamin A (retinol). It is primarily used to address significant vitamin A deficiencies and to support specific physiological functions where this nutrient is essential.

Treatment of Vitamin A Deficiency

The primary clinical use of Aquasol A is the treatment of severe vitamin A deficiency. This condition can arise from inadequate dietary intake or from medical conditions that interfere with the body's ability to absorb or store the vitamin.

Deficiency is often characterized by specific ocular and dermatological symptoms, including:

  • Nyctalopia (Night Blindness): Difficulty or inability to see in relatively low light or at night.
  • Xerophthalmia: A progressive eye condition where the eyes fail to produce tears, which can lead to corneal dryness and potential damage.
  • Hyperkeratosis: A skin condition where the outer layer of the skin thickens, often resulting in dry, rough, or scaly patches.

Support for Malabsorption Syndromes

Aquasol A is specifically formulated to be water-miscible, which may be beneficial for individuals who have difficulty absorbing fat-soluble vitamins. This includes patients with underlying conditions such as:

  • Celiac disease
  • Cystic fibrosis
  • Pancreatic insufficiency
  • Biliary obstruction
  • Chronic diarrhea or inflammatory bowel conditions

Physiological Benefits

Vitamin A is a critical micronutrient that supports several systemic functions:

  • Vision Health: It is a precursor to rhodopsin, a biological pigment in the retina that is essential for vision in low-light conditions.
  • Immune Function: It plays a role in maintaining the integrity of mucosal surfaces (such as the lining of the respiratory and gastrointestinal tracts), which act as a first line of defense against infection.
  • Cellular Growth: It contributes to the normal growth and development of cells, particularly epithelial cells that form the skin and various internal linings.

Regulatory References

  1. US National Library of Medicine (NIH) overview on Vitamin A

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Aquasol A — Official Regulatory Information

Aquasol A (Vitamin A Palmitate) eligibility is officially defined by key contraindications and limitations related to toxicity, reproductive status, and administration safety, according to regulatory labels.

Eligibility Scope Status/Rule Official Constraints
Populations Contraindicated Prohibited Patients with pre-existing Hypervitaminosis A or Hypersensitivity to any component.
Pregnancy Contraindicated (High Dose) Use is strictly prohibited for doses exceeding the Recommended Dietary Allowance (RDA) due to established risk of fetal harm (teratogenicity).
Administration Route Prohibited The Intravenous (IV) route is absolutely contraindicated due to the risk of anaphylactic shock and death. Use is restricted to the intramuscular (IM) or oral routes.
Hepatic & Renal Status Caution Advised Use requires caution in patients with Liver Disease or Chronic Alcohol Abuse, and in those with Kidney Disease, due to the potential for increased Vitamin A toxicity.
Age (Low Birth-Weight Infants) Use Not Established While use may be indicated for deficiency, the exact dosing in low birth-weight infants has not been established in official labeling.
Lactation Allowed Use is permitted for nursing mothers at or below the U.S. Recommended Daily Allowance (RDA) of 5,000 Units.

Connection to the overall eligibility profile: Regulatory documents define who can and cannot use Aquasol A primarily by prioritizing the prevention of toxicity (Hypervitaminosis A) and avoiding high doses in pregnant women to mitigate fetal harm. The eligibility structure restricts use to deficiency states and certain routes of administration (IM/Oral), while advising specific caution for patients with pre-existing conditions that affect the drug's metabolism.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Aquasol A (Vitamin A) details specific restrictions and administration constraints designed to prevent additive toxicity and ensure proper absorption.

Pharmacodynamic Interactions and Restrictions

Co-administration with oral retinoid medications (such as Isotretinoin, Acitretin, and Bexarotene) is formally restricted due to the high risk of additive Vitamin A-related activity. This potent combination may lead to a dangerous increase in the chance of developing Hypervitaminosis A. Similarly, using Aquasol A with tetracycline-class antibiotics (e.g., Doxycycline, Minocycline) is officially associated with an increased risk of developing pseudotumor cerebri, which is also known as benign intracranial hypertension.

Absorption-Modifying Interactions and Timing Rules

Certain agents are officially documented to reduce the body’s systemic exposure to Aquasol A by interfering with its intestinal absorption. These include bile acid sequestrants (such as Cholestyramine) and Mineral Oil. To counter this absorption reduction, regulatory guidance specifies a mandatory timing separation: Aquasol A must be administered at least one hour before or four to six hours after the bile acid sequestrant.

Substance and Population Considerations

Co-use of high-dose Vitamin A with alcohol or other products classified as hepatotoxic agents may increase the documented risk of liver damage. Furthermore, official labels note that patients with underlying hepatic impairment (liver disease) are at a heightened risk for the development of Hypervitaminosis A.

Mechanism of Action

The active ingredient of Aquasol A functions as a precursor to essential signaling molecules, engaging two distinct mechanistic pathways: gene regulation and photopigment synthesis.

Nuclear Receptor-Mediated Gene Regulation

The precursor is metabolized into All-trans-Retinoic Acid (ATRA), which acts as a ligand agonist for the Retinoic Acid Receptors ( RAR/ RXR), a complex of nuclear receptors inside the cell. This complex binds to DNA to modulate gene transcription, which is the mechanism that controls the differentiation and maturation of epithelial and mucosal cells throughout the body and regulates the development of the immune system. This pathway governs the systemic and long-term physiological consequences.

Establishment of the Visual Cycle Photopigment

In the retinal rod cells, the molecule operates via a separate, rapid reaction. The precursor is metabolized to 11-cis-Retinal, which is the key molecule required to synthesize Rhodopsin, the specialized photopigment essential for the detection of light in dim environments. This substrate replacement mechanism directly establishes the retinal's capacity for phototransduction, which establishes the capacity for a physiological response to low light.

Dosage and Administration Information

How to Use Aquasol A

Aquasol A is a high-potency Vitamin A product administered via specific routes and regimens. The administration of the drug is determined by the patient's condition and the required dosage form, following a structured therapeutic approach.


Administration Scope

Feature Description
Route of administration Intramuscular (IM) injection for the solution; Oral (PO) for the capsule and solution forms.
Dosing schedule Severe Deficiency (Initial): 100,000 Units daily (IM) for 3 days. Follow-up: 50,000 Units daily (IM) for 2 weeks. Maintenance: 10,000 to 20,000 Units daily (PO).
Age-group rules Pediatric (1–8 years): 17,500 to 35,000 Units daily (IM) for 10 days.

Procedural Structure and Context

The usage protocol is structured as a sequential course, designed to first correct acute deficiency and then transition to maintenance. The IM route is utilized when fat malabsorption syndrome or an inability to tolerate oral medications is present. Conversely, oral administration may be conducted by mixing the solution with various foods, such as juice or cereal.

Daily administration is maintained throughout the acute parenteral and subsequent oral maintenance phases. The injection is designated strictly for Intramuscular Use, and prolonged daily administration exceeding 25,000 Units of Vitamin A involves clinical supervision.

Recent Clinical Evidence

Research evidence / Overview of studies for Aquasol A


Evidence for Therapeutic Use in Severe Vitamin A Deficiency (VAD)

The treatment of severe Vitamin A Deficiency (VAD) has been a primary area of research for high-potency Vitamin A. This work includes large-scale clinical investigations, primarily systematic reviews and meta-analyses that pool data from many controlled studies. This research was studied for children in areas where VAD is common, as well as in individuals with documented, severe clinical deficiency. This research examined outcomes such as overall mortality and the frequency of specific illnesses.

Research so far indicates patterns where Vitamin A supplementation was associated with specific changes monitored in mortality rates in certain population groups observed in the studies. Some trials described patterns where the reported incidence of measles and diarrhea was monitored in children who were given the supplement. The evidence contributes to the broader evidence landscape regarding population health.


Studies on Ocular and Systemic Symptoms of Deficiency

Research has explored the use of high-potency Vitamin A specifically in research exploring how symptoms change over time associated with severe VAD. These are conditions marked by functional limitations, such as xerophthalmia, a serious eye condition that includes night blindness and severe dry eye.

Findings describe patterns where patients with confirmed VAD experienced changes measured during the study period in visual function and the reported dryness of their eyes following the therapeutic intervention. Studies also examined patient-reported experiences related to physical discomfort and the systemic changes in the skin and epithelial tissues. In a clinical setting, the intervention was observed in studies to lead to patterns related to the measurement of serum retinol levels in the blood of deficient patients.


Research in High-Risk Infants and Malabsorption Syndromes

This therapeutic approach was evaluated in specific groups who have unique challenges with nutrient absorption. High-dose Vitamin A was studied for use in Very Low Birth Weight (VLBW) infants. Researchers conducted Randomized Controlled Trials (RCTs) to assess neonatal outcomes, primarily focusing on the incidence of Chronic Lung Disease (CLD) and the severity of an eye condition called Retinopathy of Prematurity (ROP). Analysis of pooled data research describes the incidence of Chronic Lung Disease (CLD) monitored in the VLBW population.

Focus on Malabsorption and Enhanced Absorption

Research has also examined the use of this specialized formulation in people with malabsorption syndromes. The research describes the successful measurement of adequate retinol concentrations in the blood following administration, even in patients with compromised fat digestion. This data show patterns related to the bioavailability of the water-miscible form compared to conventional, oil-based products in this population.

Frequently Asked Questions (FAQ)

Common questions about Aquasol A (FAQ)

Q: Does the form of Vitamin A in Aquasol A make it absorb better?

The official product information describes Aquasol A as a water-miscible formulation. This specialized process is described as aiming to enhance the nutrient's bioavailability, which refers to how easily the body can absorb and use it. This formulation is indicated for use in individuals who have difficulty absorbing conventional, oil-based forms of Vitamin A, such as those with fat malabsorption disorders.


Q: Is Aquasol A meant for a short time or long-term use?

The usage protocol described in official documents indicates a design for both a short-term initial phase, which is designed to correct an acute deficiency, and a subsequent lower-dose oral maintenance phase. Prolonged daily administration of high doses (exceeding 25,000 Units) is officially noted to require close clinical supervision.


Q: Are there any common foods or drinks that should be avoided while taking Aquasol A?

Regulatory information indicates that the co-use of high-dose Vitamin A with alcohol may increase the documented risk of liver damage. Regulatory warnings suggest avoiding excessive consumption of foods highly fortified with Vitamin A to prevent the development of Vitamin A toxicity (Hypervitaminosis A).


Q: Can Aquasol A be taken by teenagers or children?

Yes, official dosage guidelines include specific administration recommendations for various pediatric age groups. These instructions cover infants, children (1–8 years), and adolescents (9–17 years), with the exact guidance depending on the specific phase of treatment required.


Q: What is the difference between Aquasol A and prescription retinoids for skin?

Aquasol A is officially classified as a therapeutic vitamin supplement primarily used to treat Vitamin A deficiency. Official documents restrict its co-administration with other oral retinoid medications (such as Isotretinoin) due to the substantial risk. This restriction is because combining them can lead to an additive risk of Vitamin A-related toxicity (Hypervitaminosis A).


Q: Is Aquasol A the same thing as a regular vitamin A supplement?

No. Aquasol A is officially classified as a prescription-only therapeutic vitamin supplement used to treat confirmed deficiencies. This classification is distinct from low-dose, non-prescription dietary supplements, and its use is reserved for clinical intervention in diagnosed deficiencies.


Q: I saw Aquasol A mentioned for skin problems; is that what it's for?

The primary purpose of Aquasol A is the treatment of Vitamin A deficiency (Hypovitaminosis A). However, official information may note that the role of Vitamin A is crucial for epithelial health and that the medication addresses deficiency-related skin conditions, such as rough or dry skin.


Q: Is Aquasol A available without a prescription?

No. Aquasol A is officially designated as a prescription-only medicine. Its status as a prescription-only medicine means it is not available as an over-the-counter supplement.


Q: Is it normal to feel a little dizzy or nauseous when starting this medication?

Official documents listing manifestations of potential Vitamin A toxicity (Hypervitaminosis A) include general symptoms such as headache, nausea, vomiting, and drowsiness. These effects are generally noted in the context of high dose and long duration, which can lead to Hypervitaminosis A.


Q: If I miss a dose, should I take it when I remember?

Standard patient information, which is non-directive, typically advises patients regarding the protocol for a missed dose. This often involves taking the missed dose as soon as it is remembered, but skipping it if it is nearly time for the next scheduled dose to avoid taking a double dose.


Q: Does Aquasol A come in different forms, like capsules or a liquid?

Yes. Aquasol A is available in several dosage forms. These include a softgel capsule for oral use, an oral liquid solution (which is the aquasolized form), and a parenteral solution for administration by intramuscular injection.


Q: Is the Vitamin A in Aquasol A synthetic or naturally sourced?

The active ingredient in Aquasol A is officially identified as synthetic Vitamin A (retinol/retinyl palmitate). It is chemically processed to achieve the specialized water-miscible preparation.


Q: Are there differences in the expected effects between the injection and oral forms of Aquasol A?

Official documents primarily differentiate the oral and intramuscular (IM) forms based on the required route of administration, such as using the IM route when oral intake is not tolerated or in cases of severe fat malabsorption. The overall therapeutic goal of correcting Vitamin A deficiency remains consistent across both administration routes.


Q: Can Aquasol A cause changes in skin sensitivity to the sun?

Increased sensitivity of the skin to sunlight (photosensitivity) has been documented as a potential side effect or a manifestation associated with high Vitamin A intake (Hypervitaminosis A). This effect is noted in the regulatory documents.


Q: Do older adults require any special monitoring while using Aquasol A?

Safety information notes that older adults may be at increased risk of conditions like osteoporosis and hip fracture with high-dose, long-term use of Vitamin A. This heightened risk is officially noted as a consideration when Aquasol A is administered in this population.


Q: Does official information suggest any expected benefits related to vision?

Official information related to the use of Aquasol A states that the medication is used to address the effects of Vitamin A deficiency. This deficiency is known to include symptoms like night blindness and changes to the eyes (xerophthalmia).


Q: Can Aquasol A affect appetite or weight?

Official documents listing manifestations of potential Vitamin A toxicity (Hypervitaminosis A) include general symptoms such as loss of appetite (anorexia) and other gastrointestinal disturbances.


Q: Are there any official documents discussing the potential for allergic reactions to Aquasol A?

Official documents state that the drug is contraindicated in patients with a known Hypersensitivity to any component. Additionally, serious adverse reactions such as anaphylactic shock have been documented, particularly with the prohibited intravenous (IV) route of administration.


Q: How is the effectiveness of Aquasol A generally measured in studies?

Studies examining the effectiveness of high-potency Vitamin A have used multiple measures. These include monitoring changes in overall mortality rates, the frequency of specific illnesses in vulnerable populations, and objective measures such as the measurement of serum retinol levels in the blood of deficient patients.

How should Aquasol A be stored and disposed of?

Storage and Protection Requirements

Aquasol A Parenteral must be stored under refrigerated conditions at a temperature range of 2–8°C (36–46°F).

Storage Constraint Condition
Temperature Keep refrigerated; Do not freeze
Environment Protect from light
Container Store in original container (2 mL Single-dose vial)

Child Safety and Handling

As required by regulatory labeling, the medication must be kept out of the reach of children.

Disposal of Unused Product

Unused or expired Aquasol A should not be disposed of in household trash or poured down a sink or toilet. Proper disposal involves following federal and local guidelines, such as utilizing an authorized drug take-back program or pharmacy collection site for unused injectable solution.

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

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