Aviochina

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Aviochina

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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 Aviochina

Property Description
Active ingredient Sulfaquinoxaline (often as Sodium Salt)
Form Powder for Oral Solution, Sterile Liquid Formulation
Pharmacological class Sulfonamide Antibiotic / Coccidiostat
Common purpose Control of susceptible bacterial and protozoal pathogens
Origin Synthetic

What is Aviochina and its Pharmacological Classification?

Aviochina is the trade name for a medicinal compound whose active substance is the synthetic agent Sulfaquinoxaline, classifying it primarily as a sulfonamide antibiotic and a specialized coccidiostat. This compound is explicitly formulated for use in veterinary medicine, specifically targeting infectious diseases in livestock and fowl populations.

Sulfaquinoxaline belongs to the foundational structural class of sulfanilamide derivatives but is differentiated by its unique quinoxaline chemical structure. This particular architecture confers enhanced activity against certain protozoal organisms. The agent is used for controlling both bacterial and protozoal pathogens, which defines its specialized scope. This active substance is categorized among antimicrobial and antiprotozoal agents.

Composition, Forms, and General Therapeutic Purpose

The fundamental composition of this agent relies on the active ingredient Sulfaquinoxaline, frequently prepared as the highly water-soluble Sulfaquinoxaline sodium salt. This formulation feature is critical, enabling the product to be administered via the oral route by mixing the powder for oral solution directly into drinking water. The availability of this specific water-soluble salt provides a key logistical advantage in managing diseases across large animal groups, distinguishing it from individual-dose antibiotics.

The general therapeutic purpose of Sulfaquinoxaline is to exert a bacteriostatic and coccidiostatic action, which helps to control or slow the proliferation of susceptible bacterial and protozoal pathogens. The medicine’s effect is rooted in its antimetabolite activity, where it disrupts the pathogen's essential ability to synthesize folic acid, thus impeding the growth and replication of the organism.

What side effects are possible with Aviochina?

Possible Side Effects and Safety Information

The safety profile for Aviochina (a drug associated with the sulfonamide class, such as Sulfaquinoxaline) is defined by officially documented risks across multiple major body systems, ranging from common gastrointestinal upset to rare but serious organ damage.

Adverse Reaction Scope

Category Documented Information
System-Organ Classes Involved Effects are noted across Blood and Lymphatic System (e.g., anemia, changes in blood cell distribution), Renal/Urinary (e.g., kidney damage, crystals in urine), Nervous System (e.g., headache, dizziness, paralysis, convulsions), Hepatobiliary (liver damage, jaundice), and Skin (severe rash, photosensitivity).
Common/Expected Adverse Reactions Nausea, vomiting, diarrhea, abdominal pain, loss of appetite, headache, and drowsiness are among the frequently documented non-serious effects.
Serious Adverse Reactions The most serious reactions documented include extensive kidney damage and the destruction of red blood cells. Risks also include severe skin reactions (such as a severe, often fatal, red rash with blisters) and irreversible damage to the nervous system.

Safety Classifications (High-Level)

  • Population-Specific Considerations: Regulatory documents note that in the context of related substances, certain populations (e.g., Africans) appear to be more prone to developing anaemia than others.
  • Exposure-Related Patterns: Long-term oral treatment has been associated with the full range of gastrointestinal, kidney, and nervous system effects. The risk of toxicity may be heightened under specific conditions (e.g., during hot periods).
  • Safety Restrictions and Limitations: This substance is harmful if swallowed. Safety documentation explicitly states that open cuts, abrasions, or irritated skin must not be exposed to the material to prevent entry into the bloodstream and subsequent systemic injury. The potential for sensitisation through inhalation and skin contact is also officially noted.

Connection to the Overall Safety Profile

The official safety information structures the risk assessment by defining both the breadth of potential harm (across various organ systems) and the severity of rare but life-threatening events. The safety profile is heavily constrained by the potential for severe systemic damage to the kidneys and blood, and the risk of severe hypersensitivity. Documented safety restrictions emphasize the importance of preventing systemic entry via broken skin to mitigate known hazards.

Overdose and Emergency Response

Overdose involving the active ingredient in Aviochina, Sulfaquinoxaline, is officially documented to present specific clinical and physiological manifestations. Documented acute presentations include effects on the renal system, such as crystalluria, haematuria, oliguria, and anuria. Gastrointestinal disturbances like nausea and vomiting are also listed. Chronic overexposure may lead to severe haematological toxicity, including cyanosis, severe haemolytic anaemia, and the development of bone marrow depression.

The official regulatory profile classifies overdose as potentially severe or life-threatening due to the potential for complications, including acute renal failure and irreversible haematological damage. Individuals with pre-existing renal or hepatic impairment face an increased risk of severe toxicity.

Immediate Emergency Action

Regulatory guidance explicitly mandates that any suspected or confirmed overdose requires immediate action. Individuals must seek immediate medical attention and/or contact emergency services immediately. Management is restricted to symptomatic and supportive treatment and requires close monitoring of renal and haematological parameters. As no specific antidote is known, supportive procedures such as alkalinization of the urine and maintaining adequate hydration are officially described interventions aimed at aiding excretion and minimizing crystallization risk.

Therapeutic Uses of Aviochina

What Aviochina Treats: Main Uses and Benefits

Aviochina is a veterinary medication that may be part of symptomatic management for specific acute infectious diseases in livestock and fowl. The primary therapeutic role of this medication is associated with addressing acute disease phases across several animal groups, focusing on two key domains: parasitic and bacterial infections.

Coccidiosis and Acute Bacterial Outbreaks

This medicine is primarily applied to manage acute, group-level outbreaks of coccidiosis (a protozoal infection) in susceptible animals, and for easing the impact of infections such as Fowl Cholera and Fowl Typhoid. This dual application addresses conditions presenting with systemic or localized discomfort caused by both parasitic and bacterial factors. This sulfonamide derivative is commonly used to help with the parasitic burden, which provides support that helps ease the overall symptom burden related to severe gastrointestinal distress and intestinal damage.

Quick Fact: Relief for Acute Gastrointestinal Symptoms

Aviochina is relevant for easing the impact of infections in situations involving inflammatory or irritative processes, which provides supportive relief that helps the population cope more steadily with difficult episodes characterized by heightened systemic burden.

Regulatory References

  1. FDA's Code of Federal Regulations on Sulfaquinoxaline

Eligibility and Restrictions for Use

Who Can and Cannot Use Aviochina?

The population eligibility for Aviochina (Sulfaquinoxaline) is strictly defined by regulatory bodies within the context of veterinary medicine and the prevention of drug residues in food products. This medicine is explicitly not for human use.


Approved and Contraindicated Populations

The medicine is officially allowed for use in chickens, turkeys, cattle, and calves for their labeled indications. However, several populations are formally prohibited or contraindicated:

  • Humans: Use is prohibited.
  • Lactating Dairy Cattle: Use of sulfonamides is prohibited by federal regulation.
  • Poultry Producing Eggs for Human Consumption: Use is contraindicated.
  • Animals with known sulfonamide hypersensitivity.

Eligibility Restrictions

Eligibility is limited by the animal's production status. Use is prohibited in pre-ruminating calves intended for veal, as a withdrawal period is not established. All treated animals must observe a mandatory withdrawal period (typically 10 days) prior to slaughter for food production.

What should I know about interactions with other medicines?

Interaction Map: Interactions with other medicines and products — official regulatory information for Aviochina (Sulfaquinoxaline)

Property Value
Medicinal product categories with documented interactions Ionophore Coccidiostats, Essential Nutrients (Folic Acid / Vitamin K Pathway)
Specific interacting medicines (if explicitly listed) Salinomycin, Narasin (Ionophore Coccidiostats)
Mechanistic basis of interactions (only if stated in label) Pharmacodynamic antagonism with the Folic Acid/Vitamin K system; documented incompatibility leading to increased toxicity with other anticoccidial agents.
Timing-based interaction rules (if applicable) None explicitly documented that mandate separation by a specific number of hours.
Population-specific interaction notes (if applicable) None explicitly documented regarding increased interaction severity in sub-populations.
Interaction-related restrictions Restriction on co-administration with certain Ionophore Coccidiostats due to documented adverse outcomes.

Interaction classifications (high-level)

Property Value
Interaction severity classification (as defined in official documents) Combinations are documented as having incompatibility leading to significant adverse outcomes.
Regulatory basis (EMA / FDA / etc.) U.S. regulatory documentation (Code of Federal Regulations) and authoritative veterinary sources.
Interaction-context constraints (as defined in official documents) Constraints are defined to prevent co-administration toxicity and manage essential nutrient antagonism.

Resulting interaction structure

Official interaction statements:

  • Co-administration with certain Ionophore Coccidiostats, specifically Salinomycin and Narasin, is officially documented to result in incompatibility and a risk of toxicity, including severe weight gain depression.
  • The drug's sulfonamide class establishes a pharmacodynamic antagonism with the Folic Acid pathway, requiring official consideration for co-administration with related nutrients.
  • Prolonged administration is officially noted to interfere with normal blood clotting, establishing a relationship with the essential Vitamin K pathway.

Connection to the overall interaction profile (2–4 sentences):

Regulatory documentation defines the product's interaction structure primarily by mandating a restriction against co-administration with specific categories of anticoccidial agents due to known toxicity and adverse outcomes. Furthermore, the profile incorporates a required caution regarding the pharmacodynamic antagonism against the Vitamin K and Folic Acid pathways. Explicit documentation is not present for pharmacokinetic interactions, specific dose separation timing rules, or population-based interaction severity notes.

Mechanism of Action

Targeted Blockade of Pathogen Metabolism

The active ingredient, Sulfaquinoxaline, acts as a competitive inhibitor of the enzyme Dihydropteroate Synthase ( DHPS). This enzyme is critical for the target organism's survival, as it initiates the de novo Folic Acid synthesis pathway. By structurally mimicking the natural substrate, the drug binds to DHPS and halts the metabolic reaction, engaging a mechanism that results in the regulation of microbial proliferation.


Causal Cascade to Nucleic Acid Suppression

The initial enzymatic blockade triggers a cascade that results in the suppression of nucleic acid synthesis. Since the target organism cannot produce Folic Acid, it cannot generate the essential Tetrahydrofolate ( THF) needed for one-carbon transfers to form purines and pyrimidines. This action modifies the pathogen's early molecular steps, causing the cellular consequence of inhibition of cell proliferation (bacteriostasis and coccidiostasis).


Mechanistic Basis for Selective Toxicity

The drug's mechanism is confined to organisms that rely on this specific, inhibited endogenous pathway to create Folic Acid. This provides the basis for selective toxicity, as host cells absorb pre-formed dietary folate and do not use the DHPS enzyme. This mechanism limits the impact of the drug to the target pathogen, confining the biological action through mechanistic selectivity.

Dosage and Administration Information

How to Use Aviochina

Aviochina (Sulfaquinoxaline) is administered exclusively via the oral route, designed as a mass treatment for animal populations rather than individual dosing. The medicine is supplied as a water-soluble powder or concentrate that must be accurately prepared and dissolved into the animals' drinking water.

Administration Method and Dosing Schedule

The fundamental usage principle requires the concentration of the prepared solution to deliver a specific dose range to the population. Dosing regimens are established by concentration, such as providing a solution between 0.015% and 0.04% of Sulfaquinoxaline in the drinking water. This concentration-based approach ensures a consistent intake across the group.

Usage typically follows an intermittent and cyclic schedule. The medicated water is provided continuously for a short, defined course (e.g., 2 to 3 days) and is then followed by a mandatory withdrawal period (a period using non-medicated water), before a potential repeat of the medication cycle. The precise duration and timing of these cycles are explicitly detailed in the approved product label and must be followed.

Preparation Requirements

A critical requirement for proper administration is that the prepared solution must be the sole source of drinking water available to the animals throughout the entire treatment cycle. Prior to administration, the correct quantity of the Aviochina product must be precisely weighed or measured and then thoroughly dissolved into the designated volume of water, ensuring a homogeneous solution for consistent delivery across the group.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Aviochina

Evidence for Use in Coccidiosis

Research on Aviochina's active ingredient, Sulfaquinoxaline, was primarily conducted using controlled laboratory challenge experiments and field observation studies on natural outbreaks. Studies focused on populations of young fowl, such as chickens and turkeys, in research contexts involving parasitic infections to explore short-term symptom changes.

These studies monitored outcomes such as change in mortality rates and parasite burden. Early evidence also explored outcomes reflecting daily functioning, such as measured body weight gain and feed efficiency in study groups. Historically, studies contributed to the broader evidence landscape by describing patterns observed where parasite loads were noted as lower in medicated groups compared to control groups. Regulatory reviews of this foundational data have indicated that the compound was studied in the context of Coccidiosis outbreaks.


Evidence for Use in Acute Bacterial Infections

Studies related to acute bacterial infections, specifically Fowl Cholera and Fowl Typhoid, have been part of the historical research base. These investigations primarily used experimental infection studies to determine the compound's behavior against susceptible bacteria. Research focused on episodes where symptoms became more noticeable, with outcomes related to systemic or functional imbalance being monitored.

Studies monitored changes measured during the study period related to population mortality rates during acute episodes. The available evidence, reviewed by national regulatory bodies, describes that the compound was evaluated in research focusing on these conditions, contingent upon the bacteria being susceptible to the medicine. Findings describe patterns observed in the studies related to lower acute mortality rates in challenged populations.


What Remains Unclear or Under-Researched

A major limitation is the documented existence of widespread pathogen resistance to the sulfonamide class of drugs, which is a key factor when reviewing the historical data. Furthermore, the follow-up durations were limited in many acute treatment studies, meaning that the stability or durability of observations over many months is not well characterized. Comparative evidence against contemporary anti-parasitic agents is often lacking or mixed. Research does not determine whether an individual flock or animal will respond similarly given the variability of pathogen susceptibility.

Key Studies & References Code of Federal Regulations, Title 21, Part 520.2325a: Sulfaquinoxaline oral dosage forms

Frequently Asked Questions (FAQ)

Common questions about Aviochina (FAQ)


Q: Are there any long-term side effects associated with taking Aviochina?

Regulatory documents indicate that prolonged administration of the active ingredient (Sulfaquinoxaline) at higher doses may lead to severe adverse effects. These risks include the deposition of crystals in the kidney and interference with normal blood clotting. The official regimen is generally short and cyclic, a strategy designed to help limit the potential for these long-term effects.


Q: Can people with kidney problems safely take Aviochina?

The official product information cautions that prolonged use of the active ingredient at higher concentrations may result in damage to the kidneys through the deposition of drug crystals. Given the known risk to the renal system, official use requires careful monitoring in the approved animal populations. The product label does not explicitly address the use in cases where a pre-existing kidney condition is present.


Q: Can I drive or operate machinery while taking Aviochina?

Aviochina (Sulfaquinoxaline) is a prescription animal drug and is not approved for human use. Because this product is not approved for human use, it does not carry warnings or guidelines relevant to human activities like driving or operating machinery. The drug is strictly for veterinary application.


Q: Do people usually take Aviochina for a short time or for many months?

The treatment schedule for Aviochina is typically short-term and cyclic. The administration method usually involves giving the medicated water for a few consecutive days (e.g., 2–3 days), followed by a withdrawal period. The cyclic administration schedule is defined in the product instructions to regulate total exposure and minimize the potential for side effects associated with prolonged use.


Q: Is there a maximum time someone can safely take Aviochina?

Regulatory warnings implicitly limit the time the drug is administered by noting that prolonged administration at higher doses may result in undesirable outcomes such as depressed feed intake, kidney crystals, and issues with blood clotting. Instead of a single maximum duration, the drug is administered in short, defined cyclic treatment periods, a structure required by the official instructions to manage the risk of adverse outcomes from long-term exposure.


Q: Can Aviochina cause changes in appetite?

Official labeling notes that prolonged administration at higher doses may result in depressed feed or water intake in the treated animals. This documented effect suggests consumption patterns may be altered. Loss of appetite is also listed as a known, non-serious side effect in the general safety profile.


Q: Is it important to take Aviochina at the exact same time every day?

For this medication, which is given as a mass treatment via drinking water, the primary requirement is that the medicated solution must be the sole source of drinking water throughout the entire treatment cycle. This ensures consistent intake across the group, which is the primary requirement for consistent drug delivery, rather than focusing on a specific time of day.


Q: What are the signs that Aviochina might not be working for me?

Official documents for similar sulfonamides suggest that if the treated animal population shows no clinical improvement within a few days (typically 2 to 5 days, depending on the species and condition), discontinuation and a re-evaluation of the diagnosis are often suggested. A lack of response or a worsening of symptoms can be a sign of treatment failure.

How should Aviochina be stored and disposed of?

The storage and disposal of Aviochina (Sulfaquinoxaline) must comply with official regulatory documentation to ensure stability and safety.

Storage Requirements

The product must be stored at controlled room temperature, generally between 20 C and 25 C. The container should be kept tightly sealed in a well-ventilated location and protected from moisture and ignition sources. The medicated drinking water prepared from the powder formulation must be used fresh daily.

Safety and Disposal

Aviochina must be stored out of the sight and reach of children and pets. For disposal, unused or expired product must be handled as pharmaceutical waste and discarded according to local, regional, and national regulations. It is prohibited to dispose of the product into sewers, surface water, or ground water.

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

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