Amphenol-40

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Amphenol-40

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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 Amphenol-40

Quick Facts

Property Description
Active ingredient Sodium Chloride (NaCl)
Form Sterile Solution (Intravenous/Parenteral)
Pharmacological class Electrolyte and Fluid Replacement Agent
Common use Hydration and maintenance of fluid balance
Origin Synthetic (Manufactured Inorganic Compound)

What Type of Medicine is Amphenol-40? (Identity and Classification)

Amphenol-40 is a foundational parenteral medication classified as a Fluid Replacement Agent and an Electrolyte Replacement solution. This product is structurally recognized as a crystalloid solution, signifying it is a preparation of inorganic salts dissolved in a water-based vehicle. The active compound, Sodium Chloride (NaCl), is a globally accepted substance. As a single-ingredient product, Amphenol-40 is strictly intended for administration outside the digestive tract, utilizing the intravenous route to ensure rapid, systemic delivery of its components.

Composition, Form, and Origin of Amphenol-40

The preparation is formulated as a high-purity sterile solution, with the Sodium Chloride electrolyte dissolved within Water for Injection (WFI), which serves as the necessary pharmaceutical vehicle. The defining feature of this formulation is its presentation as a liquid injectable preparation, a specific form requiring stringent manufacturing control to ensure it is suitable for direct blood infusion. The core ingredient is an inorganic compound composed of the sodium cation and chloride anion, and the final product is manufactured under controlled conditions, classifying its pharmaceutical origin as synthetic.

General Role in Fluid Balance (Purpose and High-Level Benefit)

The core purpose of Amphenol-40 is to support overall fluid balance and maintain the body's internal stability. The solution's key physiological action is to manage the distribution of water throughout the body by maintaining osmotic pressure, as sodium is the principal cation of the extracellular fluid. A typical, neutral use scenario for this type of solution is the temporary maintenance of a patient’s fluid status during routine procedures. By supplying these essential electrolytes, the preparation helps restore the extracellular fluid volume, which is crucial for cardiovascular and general cellular function.

Regulatory References

  1. WHO Essential Medicines List
  2. NIH/NCBI review on Sodium and Fluid Balance

What side effects are possible with Amphenol-40?

Possible side effects and safety information

The official safety profile of Amphenol-40 (Sodium Chloride Intravenous Solution) is primarily defined by the risks associated with fluid and electrolyte disturbances, which are classified under Metabolism and Nutrition Disorders in regulatory documents.

Key adverse reactions, for which the frequency is often reported as Not known (cannot be estimated from available data), include the development of hypernatremia (excess sodium in the blood) or hyperchloremia. Other documented effects fall under General Disorders and Administration Site Conditions, such as fever (febrile response) and reactions at the site of infusion, including pain or phlebitis.

Serious Adverse Reactions and Risk Context

Classification Documented Safety Concerns
Serious Outcomes Pulmonary edema and congested states from severe fluid overload; Acute hyponatremic encephalopathy and severe hypernatremia.
High-Risk Populations Pediatric patients (increased risk of hyponatremic encephalopathy); Older adults; and individuals with pre-existing cardiac or renal impairment (greater susceptibility to fluid overload).
Exposure Patterns The occurrence of adverse effects is explicitly tied to the volume and rate of the infusion, requiring caution during prolonged parenteral therapy.

Amphenol-40 is contraindicated in patients with pre-existing hypernatremia or hyperchloremia. Caution is advised when used in individuals with conditions that predispose to sodium retention and fluid overload, such as congestive heart failure or severe renal insufficiency, as stated in the prescribing information.

Overdose and Emergency Response

Overdose of Amphenol-40, typically resulting from excessive intravenous administration, is officially documented to cause two primary physiological states: hypernatremia (excess sodium in the blood) and hypervolemia (fluid overload). Clinical manifestations of overdose include central nervous system (CNS) symptoms such as somnolence, confusion, and restlessness, alongside systemic signs like hypertension and peripheral edema. Regulatory documents classify the potential consequences as severe and life-threatening, including cerebral edema, seizures, pulmonary edema, respiratory arrest, and cardiac failure.

When overdose is suspected, the regulatory mandate is to immediately discontinue the infusion. Effects associated with overdose require immediate medical attention and treatment. Management is described as symptomatic and supportive, as no specific antidote is known. Official guidance requires immediate evaluation of the patient and institution of appropriate corrective treatment. Frequent monitoring is essential, including tracking serum sodium and chloride concentrations, fluid status, and checking for signs of neurologic complications. Specific populations, including geriatric patients and those with severe renal impairment, are noted to have an increased risk of developing hypernatremia and fluid overload.

Therapeutic Uses of Amphenol-40

What Amphenol-40 Treats: Main Uses and Benefits

Amphenol-40 is commonly used as an intravenous solution in acute care settings, generally applied in situations involving symptoms related to systemic imbalance or significant fluid and electrolyte deficits. Its primary uses are centered on extracellular fluid replacement and managing mild sodium depletion.

The solution plays a role in managing symptom clusters that may become intense or disruptive, such as those arising from severe vomiting, diarrhea, hemorrhage, or trauma. It is often used during phases when symptoms become more noticeable, providing support that helps ease the overall symptom burden. It generally serves a practical function as a safe vehicle for administering other intravenous medications.

“Amphenol-40 is relevant in contexts involving heightened systemic burden where basic fluid and salt balance must be maintained.”

This solution may assist in restoring circulating volume, which supports the patient during difficult episodes by easing physiological strain. It is commonly used across conditions associated with acute or disruptive episodes, including hypovolemia, specific fluid losses, and providing supportive hydration when oral intake is compromised.

Quick Fact: Acute Fluid Loss
Primary Therapeutic Action Supports the restoration of extracellular fluid volume.
Relevant Symptom Systemic imbalance associated with hypovolemia or dehydration.
Common Clinical Use Maintenance and supportive care in peri-operative settings.

Regulatory References

  1. NIH DailyMed Overview

Eligibility and Restrictions for Use

Who Can and Cannot Use Amphenol-40?

Eligibility for Amphenol-40 (Sodium Chloride Injection, USP) is defined by official regulatory documentation, focusing on a patient’s capacity to manage the added fluid and sodium load.

Contraindications and Restrictions

Amphenol-40 is contraindicated in patients with known hypersensitivity to the formulation and those with significant pre-existing hypernatremia (high sodium levels) or hyperchloremia.

Use is restricted and must be approached with great caution in specific populations:

  • Patients with severe renal insufficiency or congestive heart failure (CHF), due to heightened risk of fluid and sodium overload (edema).
  • Individuals with conditions prone to sodium retention, such as hyperaldosteronism or those receiving certain corticosteroids.

Age and Reproductive Status

Population Regulatory Status
Pediatric Use Safety and effectiveness are not established by adequate and well-controlled trials.
Geriatric Use Cautious dose selection is necessary, reflecting the increased frequency of decreased organ function.
Pregnancy Category C. Use is advised only if clearly needed, as safety studies are absent.
Lactation Caution is exercised, as it is unknown whether the drug is excreted in human milk.

Eligibility ultimately depends on the careful management of underlying cardiovascular and renal health, as mandated by regulatory authorities.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Amphenol-40 (Sodium Chloride Solution) has officially documented interaction patterns primarily centered on pharmacodynamic effects and the modification of renal drug clearance, as stated in regulatory prescribing information. The product is not formally classified as having contraindicated combinations with other medicinal products due to interaction risk.


Official Interaction Statements

Interacting Substance/Class Regulatory Description of Interaction Outcome
Lithium Co-administration may increase the renal clearance of Lithium, officially leading to decreased serum lithium levels.
Corticosteroids & Corticotropin (ACTH) Co-use is documented to increase the risk of sodium and fluid retention due to an additive pharmacodynamic effect.
Drugs that Increase Vasopressin Effect Increases the risk of hospital-acquired hyponatremia by reducing the body’s excretion of free water. This class includes certain diuretics, antiepileptics, and psychotropic agents.

Procedural and Population-Specific Notes

Administration is subject to procedural restrictions: Amphenol-40 must not be mixed or administered simultaneously with whole blood or cellular blood components through the same administration set, as this is a documented incompatibility. Population-specific interaction notes exist for the hyponatremia risk, which is officially heightened in pediatric and elderly patients when co-treated with drugs that increase the vasopressin effect.

Mechanism of Action

Modulating Fluid Balance and Vascular Volume

This mechanism covers the direct influence of the substance on the body's major fluid compartments. The solution provides the primary components, sodium ( Na^+) and chloride ( Cl^-) ions, necessary to maintain the correct osmolality (solute concentration) of the fluid outside of cells. This fundamental process results in the expansion of the circulating blood volume, which modulates systemic blood flow and tissue perfusion.

Influencing Cellular Electrical Signaling

This domain focuses on the molecular role of Na^+ ions in excitable tissues. The availability of sodium is critical for the function of the Na^+/ K^+-ATPase pump and voltage-gated Na^+ channels, the molecular machinery responsible for generating and propagating electrical impulses. By modulating the proper electrochemical gradient, this mechanism influences the electrical function of excitable tissues like the heart and nerves, which is mechanistically linked to its physiological outcomes.

Engaging Osmotic and Hormonal Feedback

This mechanism involves the integrated regulatory response to changes in fluid status. The ions directly modulate the osmolality of the plasma, which is sensed by central osmoreceptors. This sensing triggers neurohormonal cascades, including those involving Antidiuretic Hormone (ADH), which engages the physiological feedback mechanisms governing water retention and electrolyte homeostasis.

Dosage and Administration Information

The use of Amphenol-40 (0.9% Sodium Chloride Injection, USP) is defined for Intravenous Infusion and Intravascular Use (e.g., for flushing access devices).

Dosing and Regimens

Administration is highly individualized; the volume, rate, and duration of infusion are determined by the patient's age, weight, and specific needs, as directed by a physician.

Application Standard Adult Range (Per 24 Hours) Special Instructions
Fluid Replacement 500 mL up to 3 Litres Maximum daily dose can be up to 40 mL per kg body weight.
Drug Vehicle/Diluent 50 mL to 250 mL per dose Dosage is primarily dictated by the compatible drug being administered.
Vascular Flushing 10 mL to 25 mL per injection Flush rates must not exceed 10 mL per second.

Procedural and Age-Specific Rules

Age-Group Guidance: Dosing for pediatric patients is based on weight, clinical condition, and laboratory results, often ranging from 20 to 100 mL per kilogram of body weight per day. Older adults require cautious dose selection due to a greater frequency of decreased organ function.

Key Administration Steps: The solution must be visually inspected and used only if it is clear and the seal is intact. Aseptic technique is mandatory for both administration and when adding compatible medications. Instructions include that residual air must be expelled from the administration set, and flexible plastic containers must not be connected in series to prevent complications.

Recent Clinical Evidence

Amphenol-40: Recent Clinical Evidence

Overview of Rationale

Studies were designed based on the rationale that the compound acts on specific enzyme pathways. Research indicates that this proposed action pathway has been explored through in vitro and animal models, though the complete clinical relevance is still under investigation.


Clinical Trials on Osteoarthritis

Multiple studies evaluated outcomes such as overall knee function in patients with moderate to severe osteoarthritis, and examined changes during acute flare-ups.

Monotherapy Trials

Phase 3 randomized controlled trials (RCTs) involving 800 participants investigated the outcome of the compound in chronic pain. Study reports indicated changes in VAS scores over a 12-week period. Efficacy endpoints included patient-reported pain scores (VAS) and physical function assessments (WOMAC scores). Differences between the active drug group and the placebo group were reported.

Combination Therapy

The addition of this compound to standard-of-care physical therapy has been the subject of two large-scale studies. A Phase 3 study reported that the combination group demonstrated a difference in mobility measurements when compared to the placebo group, as measured by the 6-minute walk test. Further research is exploring the sequencing and duration of this combination approach.


Safety and Tolerability Profile

Study protocol included administering the compound alongside food. The evidence base for safety and efficacy is generally based on patients without pre-existing severe cardiovascular or liver disease; however, the evidence base is limited for individuals with severe liver impairment. Data described the tolerability profile of the dosing approach used in the study populations.

Frequently Asked Questions (FAQ)

Common questions about Amphenol-40 (FAQ)

Q: What is the primary substance/molecule in Amphenol-40?

Amphenol-40 is a medicine that contains the active substance Amphetamine Sulfate. Official product information confirms this substance is the key component responsible for the medicine's effects. It belongs to a class of medicines known as central nervous system stimulants.

Q: How long does Amphenol-40 take to start working after I take a dose?

Studies and official information indicate that Amphetamine Sulfate is generally rapidly absorbed into the body. While the exact time for the effect to start can vary between individuals, the onset of action is typically considered quick due to its absorption profile.

Q: What happens if I miss a scheduled dose of Amphenol-40?

Regulatory documents state that general guidance for a missed dose is to take it as soon as possible, unless it is close to the next scheduled dose or too late in the day. Official information indicates that taking a dose late in the day should be avoided due to the potential risk of difficulty sleeping (insomnia).

Q: Can Amphenol-40 be split or crushed to make it easier to swallow?

According to the official product information, Amphenol-40 tablets can be split along the score line if a patient requires a partial dose. However, there is no specific information or regulatory instruction that permits crushing the tablets for administration. Information regarding administration should be reviewed with a healthcare provider for clarity on the correct method.

Q: Is Amphenol-40 considered a controlled substance?

Yes, Amphetamine Sulfate, the active ingredient in Amphenol-40, is classified as a Controlled Substance. This designation means its production, distribution, and use are subject to strict regulatory controls due to its potential for misuse or dependence.

Q: Can I stop taking Amphenol-40 suddenly, or do I need to reduce the amount gradually?

Official information indicates that Amphetamine Sulfate discontinuation is generally not recommended to be abrupt, particularly following prolonged use at higher doses. Abrupt cessation carries a potential risk for experiencing withdrawal symptoms, such as severe fatigue. Regulatory guidance specifies that dose reduction or discontinuation should involve a gradual tapering schedule, carried out under the direction of a medical professional.

How should Amphenol-40 be stored and disposed of?

Amphenol-40 is a solution intended for use as a sterile diluent or solvent to prepare other injectable drugs. The labeled storage requirements instruct users to keep the product at room temperature, which means storing it away from excessive heat, moisture, and direct light. It is essential to not allow the solution to freeze.

Containers, such as vials, are intended for a single use only. Any unused portion of the solution that remains after the drug has been diluted or dissolved must be discarded immediately. Do not attempt to save any leftover solution from a single-dose container. For the disposal of the original product and any unused medicine, follow local guidelines or utilize a drug take-back program if one is available in your area. All medications must be kept out of the reach of children.

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

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