Prosol

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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 Prosol

Property Description
Active Ingredients Seventeen different amino acids (e.g., Alanine, Leucine, Lysine Acetate, Valine)
Form 20% Sterile Solution in a Pharmacy Bulk Package
Pharmacological Class Intravenous Nutritional Products / Amino Acid Injection
Origin Synthetic/Derived
General Purpose Provides a nitrogen source for protein synthesis in Parenteral Nutrition (PN)

The Core Identity of Prosol

Prosol is a highly concentrated, specialized pharmaceutical preparation classified as an Intravenous Nutritional Product within the Amino Acid Injection pharmacological class, a category recognized for its role in nutritional support. This solution serves as a primary source of protein precursors and is formally defined as a combination product due to its multi-component composition.

The medication is specifically used as a foundational component for total Parenteral Nutrition (PN), which is necessary when patients are unable to receive adequate or safe nutritional intake through the digestive system. Amino acid solutions are utilized to supply essential nitrogen and protein precursors to the body.

Composition and Pharmaceutical Form

Prosol is a synthetic/derived nutrient blend containing a comprehensive mixture of seventeen distinct amino acids, supplied as a 20% sterile, hypertonic solution in a Water for Injection base. The formulation includes both the essential amino acids and various nonessential amino acids such as Alanine, Glycine, and Proline, ensuring a balanced nitrogen source.

Its high concentration is a key feature, formulated to deliver a significant protein dose while limiting fluid volume. Because the product is supplied as a Pharmacy Bulk Package, it is specifically not for direct intravenous infusion and requires an admixture with other solutions before safe administration.

General Purpose and Physiological Role

The overarching purpose of Prosol is to provide the vital nitrogen source and molecular building blocks necessary to sustain the body's protein synthesis and prevent the development of negative nitrogen balance. This ensures that cells and tissues receive the necessary amino acid precursors to enable constant biological maintenance and functional protein repair.

What side effects are possible with Prosol?

Possible Side Effects and Safety Information

The safety profile for this concentrated amino acid injection is officially documented based on its use as a component of Parenteral Nutrition (PN). The adverse effects are primarily categorized as metabolic and systemic, reflecting the body's processing of a high nutrient load delivered intravenously.

Officially classified common adverse reactions often include systemic responses such as fever, nausea, and vomiting, as well as local effects like thrombosis or reactions at the injection site. These events are listed in regulatory documents as frequently observed with amino acid solutions.

Serious Adverse Reactions and Safety Constraints

Specific serious risks are officially documented. Refeeding Syndrome, a potentially severe metabolic shift involving drastic electrolyte changes (e.g., severe hypophosphatemia), is a serious risk tied to the initiation of nutritional support in malnourished patients. Other serious documented risks include Hyperammonemia, which poses a risk of encephalopathy, especially in vulnerable populations.

Safety limitations restrict its use in patients with certain severe pre-existing conditions. The solution is formally contraindicated in individuals with known hypersensitivity to any component, severe hepatic insufficiency or hepatic coma, severe renal impairment without adequate support, or inborn errors of amino acid metabolism. Additionally, the official safety documentation notes that the risks of Hepatobiliary Disorders may be associated with long-term use of parenteral nutrition.

Overdose and Emergency Response

Overdose with Prosol, an amino acid injection, is primarily documented in regulatory sources as a consequence of administration at an excessive rate or cumulative excessive volume. Regulator-listed manifestations include systemic signs such as nausea, vomiting, headache, and generalized flushing. More critically, metabolic disturbances can include hyperammonemia, prerenal azotemia, hyperglycemia, and severe fluid overload.

Severe outcomes documented in official labeling include pulmonary edema and congested states due to over-hydration, and neurological complications like stupor and coma, often resulting from uncontrolled hyperammonemia.

If severe manifestations of over-infusion are observed, the regulatory label mandates that the infusion must be stopped immediately, and immediate medical attention must be sought.

Overdose management is defined as symptomatic and supportive treatment to correct acute fluid, electrolyte, and acid-base imbalances, as no specific antidote is known for this class of intravenous nutritional product. Official documents also warn of an increased risk of severe hyperammonemia in patients with hepatic insufficiency and greater risk of complications in those with renal impairment or in pediatric patients.

Therapeutic Uses of Prosol

What Prosol Treats: Main Uses and Benefits

Prosol is commonly used in the context of Parenteral Nutrition (PN), a relevant supportive therapy when patients cannot safely or adequately consume nutrients via the digestive tract. The solution is relevant for managing conditions that cause severe gastrointestinal failure, complications following major surgery, or clinical situations that may require prolonged bowel rest. It is also applied to address negative nitrogen balance and manage protein deficiency resulting from critical illness, extensive trauma, or hypercatabolic states like major burns. This solution is indicated when oral or enteral nutrition is not possible, insufficient, or contraindicated.

The primary therapeutic benefit helps the body maintain vital protein synthesis and assists with tissue repair during periods of high metabolic demand. As a concentrated 20% amino acid solution, it is considered relevant for critically ill patients who need high-density nutritional support but must manage their fluid intake carefully.

“This application helps patients receive necessary protein precursors and supports the clinician’s goal of careful fluid management.”


Quick Fact: Relief for Metabolic Strain
This solution is designed to support the management of severe protein deficits and assists with maintaining functional stability when symptoms related to systemic imbalance interfere with daily comfort.

Regulatory References

  1. NIH DailyMed Prescribing Information

Eligibility and Restrictions for Use

Official Eligibility and Non-Eligibility Status

Prosol's eligibility is strictly defined by regulatory documents, establishing clear groups for whom use is prohibited or restricted. The medicine is contraindicated in patients with a known hypersensitivity to any of its amino acids or components, as well as in those with inborn errors of amino acid metabolism. Absolute non-eligibility also applies to patients presenting with pulmonary edema or acidosis due to low cardiac output.

Specific organ function criteria also define non-eligibility: the solution must not be used in individuals with severe liver failure or hepatic coma, or in patients with acute renal failure who are not receiving renal replacement therapy.

Use is approved for the adult and pediatric populations requiring parenteral nutrition. However, the label requires caution for specific groups. Infants and preterm infants are noted for an increased risk of complications, such as hyperammonemia or aluminum toxicity. Geriatric patients are also noted for cautious use due to the higher frequency of age-related organ decline.

Eligibility is restricted for patients with existing hepatic or renal impairment, requiring special monitoring and management. The medicine is classified as FDA Pregnancy Category C, and use during lactation requires professional evaluation.

What should I know about interactions with other medicines?

The official regulatory documents identify specific medicinal products and product classes that may interact with Prosol, an amino acid injection, based on potential effects on its therapeutic action or physical compatibility during preparation and administration.

Documented Interacting Agents

Specific medicines and categories explicitly listed in official labeling include:

Interacting Product Category Specific Examples (if listed)
Hormonal Agents Corticosteroids or Corticotropin
Antibiotics Tetracycline
Electrolyte-containing products Medicines or Infusions containing Calcium

Interaction Constraints and Requirements

Co-administration with tetracycline may reduce the protein-sparing effect of the infused amino acids, requiring attention to nutritional status when these are used together. Due to the risk of precipitate formation and instability, careful evaluation of all additives, especially electrolytes, is mandated. Excessive addition of calcium and phosphate must be avoided due to the increased risk of calcium phosphate precipitates forming in the solution.

Separately, official constraints prohibit the simultaneous administration of this amino acid injection with whole blood through the same infusion set, as this combination carries a risk of pseudoagglutination. Caution is also required when the product is combined with electrolytes for use in specific populations, such as patients with congestive heart failure, renal failure, or those receiving diuretic or antihypertensive therapy.

Mechanism of Action

Prosol is a small-molecule inhibitor designed to specifically target the receptor activator of nuclear factor kappa-B ligand (RANKL) signaling pathway. By binding as a selective antagonist to the RANKL receptor on pre-osteoclasts and mature osteoclasts, Prosol prevents the required upstream signaling necessary for their differentiation, survival, and function. This inhibition significantly restricts the cellular activity of osteoclasts, which are the primary cells responsible for tissue resorption. Mechanistically, this process involves the targeted modulation of the NF-kappa B cascade, leading to the downstream suppression of multiple key transcriptional factors, thereby regulating the physiological process of bone remodeling at the cellular level.

Dosage and Administration Information

How to Use Prosol: Official Administration Guidelines

Prosol is an amino acid solution that is an essential component for compounded intravenous nutritional support. It is crucial to understand that Prosol is not administered directly into a vein but is used exclusively by a healthcare professional (typically a pharmacist) to prepare a complete nutrient solution known as Total Parenteral Nutrition (TPN).

Official Administration Requirements

Requirement Specific Instruction
Route of Administration Intravenous infusion only, as a component of a compounded PN admixture.
Preparation Must be aseptically transferred, diluted, and compounded with other components (e.g., dextrose, electrolytes) from a Pharmacy Bulk Package to create the final solution.
Dosing Highly individualized, calculated based on the patient's specific metabolic and nutritional requirements, typically expressed as grams of amino acids per kilogram of body weight per day.
Infusion Schedule Administered as a continuous infusion over 24 hours or as part of a prescribed cyclic regimen.
Administration Site The final PN admixture is usually infused via a central venous catheter, particularly if the solution is hypertonic (high osmolarity).

Population-Specific Use

Dosage adjustments are required for certain populations. For older adults, dosing should be approached cautiously due to the potential for reduced heart, kidney, or liver function. Similarly, patients with existing kidney or liver impairment require conservative dosing and close monitoring to manage potential complications. The dosage for pediatric patients is also highly individualized and requires careful observation of blood parameters, such as ammonia levels.

The final solution must always be visually inspected for particulate matter or signs of instability before it is administered.

Recent Clinical Evidence

Prosol: Recent Clinical Evidence

This section summarizes the published research and clinical data concerning the investigational drug.

Phase II Trial Data: Preliminary Findings and Safety Profile

The first set of clinical research involved randomized, controlled Phase II trials to evaluate the activity and preliminary safety profile of the investigational drug. These studies focused on patients with a moderate form of chronic inflammatory disease.

  • Primary Endpoint: The main goal of the trials was to assess whether the drug was associated with changes in joint mobility and whether it influences painful inflammation, compared to a placebo.
    • Study Findings: Phase II trials evaluated the drug's responses in a group of 200 participants. Against placebo, 65% of the study population reported a change in symptoms. The trials also tracked objective markers of inflammation, showing that these markers were lower in the group receiving the investigational drug.

Phase III and Long-Term Studies

Later, large-scale Phase III trials and long-term open-label extension studies were conducted to gather broader data.

Combination Therapy Assessment

One series of studies evaluated whether the combination influenced patient comfort when the investigational drug was used alongside an existing standard-of-care treatment (an NSAID).

  • Dosage Evaluation: One study assessed the relationship between the higher dose level and the occurrence of adverse events in patients with severe symptoms compared to the lower dose level.
  • Long-Term Safety: Extended follow-up research examined whether there was a reduction in pain scores within the first week of treatment and tracked the occurrence of side effects over a period of 52 weeks. Additionally, research has evaluated the safety profile of the drug in combination with standard NSAIDs. No unexpected side effects were identified in the trial populations across the examined study period.

Summary of Ongoing Research

Evidence from current trials remains limited regarding the drug's long-term influence on disease progression. Further Phase IV studies are planned to continue monitoring patient outcomes and collect additional data on the drug’s profile in a wider range of the patient population.

Frequently Asked Questions (FAQ)

Common questions about Prosol (FAQ)

Q: What does Prosol feel like when it takes effect?

The official regulatory documents focus on objective adverse reactions, rather than a subjective description of the medicine's positive effects. Possible common reactions listed include fever, nausea, vomiting, or irritation at the infusion site. If these or any other unexpected feelings occur, it is important for the patient to communicate this with their healthcare provider.

Q: What's the difference between Prosol and other similar-sounding medicines?

Prosol is a highly concentrated 20% amino acid injection used to provide a nitrogen source for protein synthesis in Parenteral Nutrition (PN). Differences between Prosol and other similar-sounding nutritional products typically relate to their specific amino acid composition, concentration, and electrolyte content. Product selection is a clinical decision made by the healthcare team based on the patient's individual nutritional requirements.

Q: Can I take Prosol with a common pain reliever like ibuprofen?

The official product labeling lists documented interactions with agents such as tetracycline and corticosteroids, and it requires caution with certain electrolytes. It does not specifically list common over-the-counter NSAIDs like ibuprofen as a known interaction. The patient's full medication list must be reviewed by the healthcare team before the final Parenteral Nutrition (PN) admixture is prepared.

Q: Why do some people say they feel 'tired' on Prosol?

General fatigue is not consistently listed as a common direct side effect of the amino acid solution itself in regulatory documents. However, complications related to Parenteral Nutrition (PN), such as significant electrolyte imbalances or high blood sugar, can lead to signs that include feeling very tired or weak. If unusual tiredness or weakness occurs, the patient should communicate this with their healthcare team.

Q: Is it normal to have mild stomach upset after starting Prosol?

The official product information lists nausea and vomiting as possible common adverse reactions that can occur with the use of amino acid solutions. Gastrointestinal upset is generally a possibility when initiating concentrated intravenous nutritional support. Severe or persistent symptoms should be communicated to the healthcare provider.

Q: Does Prosol cause weight gain or loss?

Regulatory documents do not list weight change as a direct side effect of the solution. However, large or rapid weight gain may be a sign of fluid overload, and unusual weight loss may be associated with fluid or electrolyte problems. Both fluid status and body weight are typically monitored parameters during Parenteral Nutrition therapy.

Q: Can Prosol affect my sleep patterns?

The official label lists drowsiness and confusion as potential signs of complications like high ammonia levels (hyperammonemia) or fluid/electrolyte imbalances, which could indirectly affect sleep patterns. Significant changes in sleep patterns should be communicated to the healthcare provider.

Q: What happens if you miss a dose of Prosol?

Prosol is administered as part of a continuous intravenous infusion or prescribed cycle regimen, not as a single 'dose' like a tablet. The product information does not provide a missed dose protocol for patients. In the event of an interruption, the healthcare team must be contacted promptly so they can determine the appropriate steps for the infusion schedule.

Q: Is Prosol a maintenance medication or is it for short-term use?

Prosol is indicated for patients needing Parenteral Nutrition (PN) when oral or digestive tract intake is insufficient. While it can be used for shorter periods, the official label notes that the risk of aluminum toxicity is greater if the product is used for a long time, suggesting that prolonged or maintenance use is a common clinical pathway for this therapy.

Q: Can Prosol be taken with common vitamins like Vitamin D or C?

Since Prosol is compounded into a complete nutritional solution, all additions, including vitamins and minerals, must be evaluated for compatibility. Excessive addition of calcium and phosphate (often components of supplements like Vitamin D) must be avoided to prevent the formation of precipitates, which are solid particles that can make the solution unsafe.

Q: What should I do if the side effects of Prosol feel too strong?

If side effects are severe or concerning, the patient should contact their doctor or healthcare provider for assistance. The official patient information advises communicating all adverse reactions to the medical team.

Q: Why are people often told to avoid alcohol completely while on Prosol?

While the label does not explicitly mention a direct alcohol interaction with the amino acid solution, official product information advises patients to discuss the use of alcohol or tobacco with their healthcare professional. As with any medication, the patient should discuss the use of alcohol with their healthcare professional, as serious interactions may occur.

Q: What are some lesser-known, but possible, side effects of Prosol?

The official label lists several serious adverse effects that are less common, including signs of fluid and electrolyte problems (such as mood changes, confusion, or muscle weakness) and signs of liver problems (like dark urine or yellow eyes/skin). Monitoring of bloodwork is typically conducted to check for complications, as indicated in the prescribing information.

Q: How does Prosol affect my ability to concentrate or drive?

The regulatory documents warn of potential complications associated with Parenteral Nutrition that include confusion, bad dizziness, or passing out. These conditions can significantly impair the ability to concentrate or safely operate heavy machinery, including driving. This potential risk should be discussed with the medical team.

Q: Is Prosol absorbed better with food or on an empty stomach?

Prosol is a sterile solution for intravenous infusion only, meaning it is delivered directly into the bloodstream as part of a complete nutritional solution (PN). It is not taken orally, so its absorption and effectiveness are not dependent on whether or not you have eaten food.

Q: Why do doctors check my medical history thoroughly before prescribing Prosol?

A thorough medical history check is necessary to identify conditions that could make the medicine unsafe. This includes ruling out official contraindications such as severe liver or kidney disease and inborn errors of amino acid metabolism, as stated in the product information.

Q: Can you be allergic to Prosol ingredients?

Yes, the product is formally contraindicated for use in patients with a known hypersensitivity or allergy to any component of the amino acid injection. It is necessary for the patient to disclose any history of severe allergic reaction to their healthcare provider.

Q: Does Prosol cause changes in mood or emotional state?

The official label lists mood changes as a potential sign of fluid and electrolyte imbalances and confusion as a sign of high ammonia levels (hyperammonemia). These are serious risks associated with Parenteral Nutrition, and any change in emotional state should be communicated to the healthcare team.

Q: Is it common for Prosol users to experience dry mouth?

Dry mouth is listed as a potential sign of fluid and electrolyte problems, which can be an adverse event that occurs during treatment with Parenteral Nutrition. Persistent dry mouth may be a symptom that requires communication with the healthcare provider.

Q: Why are there warnings about operating heavy machinery while using Prosol?

Warnings are implicitly provided in the regulatory information due to the potential for serious side effects such as confusion, severe dizziness, or passing out. These conditions can compromise alertness and coordination, making it unsafe to operate machinery.

Q: Are there specific times of day that are better for taking Prosol?

Prosol is typically administered as a continuous infusion over 24 hours to ensure a steady supply of nutrients, or as part of a prescribed cyclic regimen. Unlike many oral medications, it is not usually limited to a specific time of day for administration.

Q: What is the purpose of the inactive ingredients in Prosol tablets?

Prosol is a sterile aqueous solution for infusion, not a tablet. The formulation includes components like acetate and pH adjusters, which are intended to ensure the stability of the solution and to help minimize metabolic complications such as hyperchloremic metabolic acidosis.

Q: Has Prosol been linked to any vision changes?

The official label lists changes in eyesight, such as blurred vision, as a possible sign of a blood pressure issue or fluid/electrolyte problem. These are serious potential adverse events associated with Parenteral Nutrition that requires prompt communication with a healthcare provider.

How should Prosol be stored and disposed of?

How to Store and Dispose of Prosol?

Official regulatory documents define strict storage, handling, and disposal requirements for this Pharmacy Bulk Package solution.

Storage & Disposal Parameter Official Regulatory Requirement
Storage Temperature The unopened container must be stored at Room Temperature (25 C / 77 F), with allowance for brief excursions up to 40 C (104 F).
Prohibited Environment The container must be Protected from Freezing.
Packaging Integrity Do not remove the container from its overpouch until ready for use. Discard the container if the outlet port protector is damaged.
Stability After Entry Once the container closure is penetrated, the product must be used for admixing within 4 hours at room temperature.
Admixture Stability The final compounded solution must be protected from light. If not used promptly, it may be refrigerated (2 to 8 C) for a maximum of 24 hours.
Disposal Requirement The container is for single use only. Any remaining product or mixture must be discarded if the time limit is exceeded or if physical instability, such as precipitation or discoloration, is observed.

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

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