Cefaval

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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 Cefaval

Property Description
Active ingredient Cefadroxil
Form Capsule, Tablet, Oral Suspension
Pharmacological class First-generation Cephalosporin Antibiotic
Common use Systemic Anti-infective Agent
Origin Semisynthetic (beta-Lactam derivative)

What Type of Medicine is Cefaval?

Cefaval is a prescription medicine whose active component is Cefadroxil, an anti-infective agent used for systemic use against bacteria. Cefadroxil is a semisynthetic compound, placing it within the larger beta-Lactam antibiotic family. It is specifically classified as a first-generation cephalosporin, a group of agents chemically related to, but distinct from, penicillin. Pharmacological studies have clinically recognized Cefadroxil for its effectiveness against a spectrum of susceptible bacteria, confirming its role as a key member of the cephalosporin class.

General Purpose and How it Functions

The primary general purpose of Cefaval is to eliminate bacterial pathogens responsible for causing infections throughout the body. It achieves this by exerting a bactericidal action, meaning it actively kills susceptible bacteria rather than merely inhibiting their growth. The core function involves disrupting the bacteria's process of building and maintaining a strong outer layer, known as the cell wall, effectively compromising the structural integrity of the microbe. This direct, destructive approach is a distinguishing feature of its mechanism, providing a decisive method for pathogen elimination.

Formulations and Physical Presentation

Cefaval is formulated for oral administration and is available as a single-component product in several pharmaceutical preparations to suit patient needs. You may receive the medicine as a capsule or tablet for solid dosing, or as an oral suspension for liquid dosing. This flexibility in dosage form is designed to accommodate varied patient needs. Regardless of the form, the active ingredient is Cefadroxil monohydrate, combined with inert pharmaceutical excipients that provide structure and stability to the final dosage unit.

Regulatory References

  1. Cefadroxil: MedlinePlus Drug Information (NIH)

What side effects are possible with Cefaval?

Possible Side Effects and Safety Information

The official safety profile for Cefaval (Cefadroxil) is structured by regulatory bodies to inform about documented adverse reactions and specific safety constraints. The majority of reported effects fall into the categories of gastrointestinal disturbances and various skin reactions.

Frequency-Classified Adverse Reactions

Adverse reactions are classified by frequency based on regulatory standards:

  • Common (affecting up to 1 in 10 patients): Nausea, diarrhea, vomiting, dyspepsia, pruritus (itching), rash, and urticaria (hives).
  • Uncommon (up to 1 in 100 patients): Overgrowth of nonsusceptible organisms, which may result in superinfection, such as vaginal or oral candidiasis (thrush).
  • Rare and Very Rare (affecting less than 1 in 1,000 patients): These include serious hypersensitivity reactions, blood system disorders (e.g., agranulocytosis, thrombocytopenia), minor liver enzyme elevations, and interstitial nephritis.

Serious Adverse Reactions and Safety Constraints

The regulatory label explicitly documents the risk of serious adverse reactions, although these are rare. These include anaphylactic shock (a severe allergic reaction), pseudomembranous colitis (a severe intestinal condition that may occur during or after treatment), and severe cutaneous reactions like Stevens-Johnson syndrome.

Safety constraints and considerations are also documented:

  • Penicillin Allergy: Caution is required in patients with a history of penicillin hypersensitivity due to the potential for cross-sensitivity between beta-lactam antibiotics.
  • Renal Impairment: Caution is noted for patients with impaired renal function (kidney function) as drug elimination may be slower, which could require careful observation. Older adults are noted as being more likely to have age-related reductions in kidney function.
  • Diagnostic Interference: Cefadroxil may cause a false-positive Coombs’ test and may interfere with certain laboratory tests for urinary glucose.

Overdose and Emergency Response

Cefaval (Cefadroxil) Overdose and When to Seek Help

Overdose Manifestations and Risks Officially documented signs of Cefaval overdose include dose-dependent gastrointestinal effects such as nausea and vomiting. Of greater concern is the potential for Central Nervous System (CNS) toxicity, which may manifest as seizures. This risk is notably higher in individuals with impaired renal function, as regulatory documents warn of drug accumulation that can lead to these severe effects. Acute, severe reactions may also present with signs of serious hypersensitivity, including swelling of the face or throat or trouble breathing.

Mandated Emergency Actions and Management The regulatory documents specify that immediate medical attention must be sought if an overdose is suspected. Individuals should contact the Poison Help line or emergency services immediately if the affected person has collapsed, had a seizure, or cannot be awakened. The clinical management of overdose is centered on supportive care, as no specific antidote is known for Cefadroxil. Treatment is explicitly defined as symptomatic and supportive, which may involve administering anticonvulsant therapy for seizures or employing emergency measures, such as epinephrine and airway management, for severe acute reactions. Continuous monitoring, including assessment of renal function, may also be required for proper management.

Therapeutic Uses of Cefaval

Cefaval (Cefadroxil) is applied across domains where additional symptomatic support is needed for bacterial infections. This medication is commonly used to help with conditions that involve inflammatory or irritative processes, and is considered relevant for addressing situations where functional stability becomes affected.

It is commonly used across conditions presenting with acute episodes of infection, including uncomplicated urinary tract infections, bacterial infections of the throat and tonsils, and infections affecting the skin and soft tissues. Cefaval helps address symptom clusters that interfere with daily comfort, such as painful urination, localized swelling, and fever.

Cefaval may also be part of symptomatic management in certain specialized clinical settings, particularly for prophylactic prevention of serious bacterial endocarditis in high-risk patients. This assists with maintaining functional stability and provides supportive relief when symptoms interfere with routine activities.


Quick Fact: Relief for Infection-Related Discomfort

Cefaval supports the patient during difficult episodes by easing distress and contributes to easing the overall symptom load associated with bacterial infection, applying to situations where symptoms are linked to organ-specific functional stress.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Contraindicated Populations

Cefaval must not be used by patients with a known hypersensitivity to the active substance, Cefadroxil, or to any other cephalosporin antibiotic. A history of severe allergic reaction to penicillin is also an absolute contraindication due to the documented potential for cross-allergenicity with cephalosporins.


Restricted and Conditional Use

Use is restricted in individuals with markedly impaired renal function as the medicine is primarily excreted by the kidneys, necessitating careful monitoring. Conditional eligibility applies to patients with a history of colitis or serious gastrointestinal disease. In older adults (geriatric patients), use requires specific consideration of age-related decline in kidney function.


Age and Reproductive Status

Cefaval is approved for use in adults and children, although specific age/weight limitations apply to infants and neonates where safety may not be established. For pregnant and lactating women, use is considered conditional and generally recommended only if clearly needed, reflecting the drug's excretion into breast milk and the lack of comprehensive studies in these populations.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Cefaval (Cefadroxil) has officially documented interaction patterns defined by changes in clearance and additive effects, as noted in government regulatory labeling.

Pharmacokinetic Interactions primarily involve renal clearance competition. The co-administration of Probenecid is documented to inhibit the drug's tubular secretion, resulting in increased and prolonged plasma concentrations of Cefadroxil. Conversely, Cholestyramine may lead to reduced bioavailability through binding in the gastrointestinal tract, while forced diuresis is known to decrease Cefadroxil blood levels.

Pharmacodynamic Interactions and Restrictions include the risk of additive organ toxicity with nephrotoxic agents, such as certain highly potent diuretics and Aminoglycoside antibiotics, where avoidance or caution is advised. Co-use with Oral Anticoagulants (e.g., Warfarin) may increase the risk of bleeding, requiring frequent monitoring of coagulation parameters. Cefaval should not be combined with Bacteriostatic Antibiotics (e.g., tetracycline) due to the possibility of antagonism.

Other notable constraints include avoiding co-administration with Live Bacterial Vaccines. Regarding administration, Cefaval is well-absorbed with or without food. The product is also known to interfere with specific diagnostic procedures, causing a false-positive result in copper-reduction tests for urinary glucose and the Coombs' test. Caution is specifically noted for patients with impaired renal function due to the risk of accumulation.

Mechanism of Action

Cefaval is a small molecule inhibitor that selectively targets two distinct components of bone degradation. Cefaval primarily inhibits the intracellular kinase, Receptor Activator of NF-kappaB Ligand (RANKL). By binding directly to the active site of RANKL, the molecule prevents subsequent phosphorylation and downstream signaling through the p38 MAPK and JNK pathways. This action induces a concentration-dependent decrease in the activation and differentiation of osteoclast precursor cells. Additionally, Cefaval selectively inhibits Cathepsin K, a cysteine protease expressed by mature osteoclasts. Inhibiting Cathepsin K blocks its proteolytic activity against Type I collagen. This dual mechanism mediates the reduction of both osteoclastogenesis (osteoclast formation) and overall bone resorption, resulting in a systemic shift in the bone remodeling balance towards the bone formation phase by suppressing the degradation phase.

Dosage and Administration Information

How to Use Cefaval (Cefadroxil)

The use of Cefaval is defined by official administration patterns and dosage ranges, based on the prescribed form and the infection being addressed. As the active ingredient is Cefadroxil, it is designed solely for oral administration.

Official Dosing and Frequency

Cefaval is available as capsules (500 mg), tablets (1 g), and an oral suspension (in various strengths). The total adult daily dosage typically ranges from 1 gram to 2 grams and is administered either once daily or in two equally divided doses every 12 hours, depending on the clinical scenario. For example, the total daily dose for uncomplicated lower urinary tract infections can be 1 g or 2 g, while skin infections are generally treated with 1 g daily.

Administration Conditions

  • Food Intake: Cefaval may be taken with or without food. Taking the medicine alongside food may assist in minimizing common gastrointestinal effects.
  • Pediatric and Renal Adjustment: Dosage for pediatric patients is determined by body weight (typically 30 mg/kg/day). For adults with reduced kidney function, the total daily dose and frequency must be adjusted and administered at extended intervals based on the patient's measured Creatinine Clearance.

Course Duration

The treatment course must adhere to specific minimum durations. For infections caused by beta-hemolytic streptococci (e.g., pharyngitis), Cefaval must be continued for a minimum of 10 consecutive days to fulfill the standard regimen. In many other cases, administration is continued for at least 48 to 72 hours after clinical symptoms have resolved. The liquid oral suspension must be accurately measured using a calibrated device and is subject to expiration, requiring refrigerated storage and disposal after 14 days.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Cefaval (Cefadroxil)


Evidence for Use in Uncomplicated Urinary Tract Infections

Research into Cefaval for uncomplicated urinary tract infections (UTIs) includes authoritative Randomized Controlled Trials (RCTs) and comparative studies. This research examined how Cefaval was studied against other established antibiotics used for these common infections.

In these trials, researchers primarily monitored two key outcomes: bacteriological cure and clinical cure. Studies monitored responses over defined time intervals, often extending a few weeks past the end of the study drug administration. Findings describe patterns observed in the studies related to measurements of bacteriological status and changes in specific symptomatic endpoints.

Evidence for Use in Skin and Soft Tissue Infections

The evidence base for Cefaval in infections affecting the skin and soft tissues includes a number of RCTs and subsequent Systematic Reviews. Studies explored Cefaval’s role against common bacteria and often compared study patterns to other oral antibiotic treatments.

Studies examined both microbiological eradication and clinical success (measurements reflecting healing or improvement). Research describes the patterns observed where these outcomes were monitored in diverse study populations, including both children and adults.


What Is Still Uncertain About Cefaval Research

Comparative evidence is lacking against many of the newest antibiotic agents available today. While evidence is available for children and older adults, consistency of findings varies in relation to the general adult population.

The core clinical trials have focused on short-term efficacy. Follow-up durations were limited, meaning long-term effects are not fully established, and there is limited information available for outcomes describing the durability of the response over an extended period.

Key Studies & References

  1. Cefadroxil (Systemic) Drug Information
  2. DailyMed: Cefadroxil Monograph/Full Prescribing Information (Representative FDA Label)
  3. Antibiotics for skin and soft tissue infections (SSTIs)

Frequently Asked Questions (FAQ)

Common questions about Cefaval (FAQ)

Q: What specific symptoms might indicate a serious allergic reaction to Cefaval?

Serious allergic reactions are documented as rare but are considered medical emergencies in regulatory documents. Official product information indicates that signs of a severe reaction can include hives, difficulty breathing or swallowing, and swelling of the face, lips, tongue, or throat.

Q: Is Cefaval use restricted for patients who have known kidney or liver problems?

Regulatory documents indicate caution is noted in official documentation for individuals with impaired kidney function, as the dosage may require adjustment. While the drug is primarily processed by the kidneys, serious adverse events have included rare signs of liver problems which are documented in the warnings.

Q: Is there a high risk of cross-reactivity between Cefaval and penicillin?

Cefaval is chemically related to penicillin. The potential for cross-sensitivity between this class of drugs (cephalosporins) and penicillins is documented and may occur in up to 10% of patients with a history of penicillin allergy. This is why a severe penicillin allergy is a documented contraindication.

Q: What is the typical duration of a treatment course with Cefaval?

The length of treatment varies depending on the specific infection being addressed. Official product information states that the duration often ranges from 7 to 14 days total. For infections caused by streptococci (like strep throat), the regimen described in official product information specifies a minimum duration of 10 consecutive days.

Q: Are there any known food or dietary supplement interactions with Cefaval?

Official information states that the medicine can be taken with or without food. Documented pharmacokinetic interactions exist with certain products, such as Probenecid (which increases drug levels) or Cholestyramine (which may reduce absorption).

Q: How is Cefaval different from other antibiotics often prescribed for similar infections?

Cefaval is classified as a first-generation cephalosporin antibiotic, which means it belongs to the beta-lactam class, related to penicillin. This class is generally associated with a more limited spectrum of activity compared to the newer second- and third-generation cephalosporins.

Q: What are the differences between a common side effect and a serious warning sign for Cefaval?

Common side effects are generally mild and temporary, such as nausea or diarrhea. Serious warning signs, documented in regulatory labels, are described as medical emergencies and include symptoms of severe allergic reaction (like difficulty breathing) or a severe intestinal infection called colitis.

Q: What conditions make Cefaval potentially less effective?

Studies and official information indicate that the effectiveness of the drug may be reduced if a person does not complete the full prescribed course of treatment or skips doses. Regulatory labels state that the medicine is not recommended for combination with certain bacteriostatic antibiotics due to the potential for antagonism.

Q: What does the term 'cephalosporin' mean in relation to Cefaval?

Cefaval is a cephalosporin antibiotic, a member of the beta-lactam class of anti-infective agents. Its primary function is a bactericidal action—it works by actively killing susceptible bacteria through disrupting the formation of their cell wall.

Q: Is Cefaval used to treat viral infections like the cold or flu?

No. Cefaval is an antibacterial drug used specifically to treat infections caused by susceptible bacteria. Official labeling states that it is not effective against viral infections, such as the common cold or influenza.

Q: Is it common for patients to feel tired or dizzy while taking Cefaval?

Dizziness, weakness, drowsiness, and nervousness are among the adverse reactions reported in official product information. While these effects are documented, their frequency is generally listed as uncommon or rare.

Q: How long after starting Cefaval should I expect to begin feeling better?

Official patient information indicates that Cefaval is rapidly absorbed and starts working quickly. Most patients typically begin to feel better and notice an improvement in symptoms during the first few days of treatment.

Q: Does Cefaval start working immediately after the first dose is taken?

Yes, the medication is rapidly absorbed after oral administration. Official clinical pharmacology data shows that peak drug concentrations are typically reached in the blood within 1 to 2 hours of the first dose.

Q: What information is available regarding the potential for Cefaval to interact with oral contraceptives (birth control)?

Official documentation notes that Cefaval may interfere with the effectiveness of oral contraceptives. In circumstances where a patient experiences severe sickness or diarrhea, regulatory guidance often suggests that additional contraceptive methods be considered.

Q: Is there any official guidance on the use of Cefaval while consuming alcohol?

No direct ill effects or specific warnings are typically documented regarding the concurrent use of Cefaval and alcohol. However, healthcare professionals often recommend avoiding alcohol to ensure the best possible recovery from the underlying infection.

Q: What is the recommended guidance if a dose of Cefaval is missed? (Informational only)

If a dose is missed, official patient information suggests that the dose be taken as soon as you remember. If it is almost time for your next scheduled dose, the advice is to skip the missed dose and continue with the regular schedule without doubling the dose.

Q: What is the relationship between Cefaval and antibiotic resistance?

Official regulatory information describes Cefaval as intended for use only to treat or prevent infections proven or strongly suspected to be caused by susceptible bacteria. Official warnings state that the misuse of antibacterial drugs increases the risk of the development of drug-resistant bacteria.

Q: Does Cefaval target only specific types of bacteria, or is it a broad-spectrum antibiotic?

Cefaval has a documented antibacterial spectrum. While it is active against many susceptible bacteria, its spectrum of activity is considered relatively limited compared to newer second- and third-generation cephalosporins in the same class.

Q: How long might side effects from Cefaval last after the medication is finished?

Most common side effects usually subside shortly after the drug is discontinued. However, official warnings note that severe intestinal issues, such as C. difficile associated diarrhea, have been reported to occur up to two months after antibacterial agents are stopped.

Q: Does Cefaval's official documentation address its potential effect on the beneficial bacteria in the gut?

While not directly defining 'beneficial bacteria,' official documentation notes that antibacterial treatment alters the normal flora of the colon. This alteration can lead to the overgrowth of nonsusceptible organisms and subsequent infections, such as Clostridioides difficile.

Q: What is the role of Cefaval's 'generation' in its spectrum of activity?

Cefaval is classified as a first-generation cephalosporin. This classification is used to indicate that the drug's activity is primarily directed toward Gram-positive bacteria, generally offering a more focused spectrum than later generations.

Q: What evidence exists regarding the use of Cefaval for surgical infection prevention?

Yes, official regulatory indications state that the drug is approved for the prophylaxis (prevention) of bacterial endocarditis. This applies to certain penicillin-allergic patients who are undergoing specified dental or upper respiratory tract procedures.

Q: What is the specific safety classification of Cefaval (e.g., in pregnancy categories)?

Cefaval is classified as Pregnancy Category B. This means that animal reproduction studies have revealed no evidence of harm to the fetus, but there are no adequate and well-controlled studies conducted in pregnant women.

Q: Does Cefaval have any known effects on mental clarity, concentration, or driving ability?

Adverse reactions such as dizziness, drowsiness, and nervousness have been reported in official product monographs. These central nervous system (CNS) effects have the potential to affect concentration or the ability to drive or operate machinery.

Q: Are there any special considerations for taking Cefaval in hot or humid climates (non-dosing storage clarification)?

Regulatory documents specify that the oral tablets and capsules must be stored at room temperature in a closed container. The product is required to be protected from excess heat, moisture, and direct light to maintain its potency. The reconstituted liquid form requires refrigeration.

How should Cefaval be stored and disposed of?

How to Store and Dispose of Cefaval?

Storage Requirements

The oral tablets or capsules must be stored in a closed container at room temperature, away from excess heat, moisture, and direct light to maintain potency. The dry powder for oral suspension must also be stored at room temperature. The liquid form, once reconstituted, must typically be stored in the refrigerator and kept from freezing.

Product Form Storage Temperature Stability/Protection
Tablets/Capsules Room Temperature Keep in original, closed container; Protect from heat, moisture, and light.
Reconstituted Liquid Refrigerated Discard any unused portion after 14 days (or as specified on the label). Keep from freezing.

Disposal Instructions

All forms of Cefaval must be kept out of the reach of children and pets. Do not keep outdated or no longer needed medicine. The safest way to dispose of unused or expired medicine is through a drug take-back program. If a take-back program is unavailable, mix the medicine (do not crush) with an unappealing substance like used coffee grounds or cat litter, place the mixture in a sealed plastic bag, and discard it in the household trash. Do not flush the medication down the toilet unless explicitly instructed to do so by the manufacturer's official labeling.

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

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