Ultrasef

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Ultrasef

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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 Ultrasef

Quick Facts

Property Description
Active ingredient Cephradine (Cefradine)
Form Capsules, Powder for Oral Suspension, Injection Solutions
Pharmacological class beta-lactam Antibiotic (First-Generation Cephalosporin)
Common use Resolution of bacterial infections
Origin Semi-synthetic

Defining Cephradine and Its Function

Ultrasef is a prescription medication containing the active ingredient Cephradine, which is classified as a semi-synthetic beta-lactam antibiotic. This drug belongs specifically to the first-generation cephalosporin family and acts against a wide range of susceptible microorganisms, including both Gram-positive and Gram-negative bacteria.

The medicine's core role is that of a bactericidal agent; its function is to directly kill bacteria. This therapeutic goal is achieved by interfering with the final stage of bacterial cell wall synthesis, causing the microbial cells to rupture. The drug is presented as a single active ingredient preparation.


Forms and Core Therapeutic Purpose

Cephradine is available in multiple dosage forms to accommodate various administration needs. These include capsules and powder for oral suspension for oral intake, as well as sterile injection solutions suitable for intramuscular or intravenous administration. This variety is a distinguishing factor, allowing for flexibility in treatment settings.

The fundamental purpose of Cephradine therapy is to achieve the resolution of the infectious process by rapidly and effectively eliminating susceptible bacterial pathogens throughout the body. Its broad spectrum activity targets key enzymes involved in maintaining the bacterial cell wall.

Regulatory References

  1. NIH LactMed Entry for Cephradine

What side effects are possible with Ultrasef?

Possible Side Effects and Safety Information

This section describes the officially documented adverse reactions and safety characteristics of Ultrasef (Cephradine), structured according to regulatory classifications found in documents such as the FDA Prescribing Information and European Summary of Product Characteristics (SmPC).


Official Adverse Reaction Profile

The majority of documented adverse reactions are generally mild and transient. The most frequently reported effects are related to the Gastrointestinal System and Immune System.

System-Organ Class Common Adverse Reactions
Gastrointestinal Disorders Diarrhea, nausea, vomiting
Immune System/Skin Hypersensitivity reactions (e.g., rash, urticaria), itching
Nervous System Headache, dizziness

Serious Safety Considerations

Regulatory documents highlight rare but clinically important reactions. These serious adverse reactions include anaphylaxis (a severe allergic reaction), severe cutaneous reactions like Stevens-Johnson Syndrome (SJS), and severe bowel issues such as pseudomembranous colitis, which may develop during or after treatment.

Population-Specific Safety Notes

The official labeling outlines specific precautions for certain patient groups. Caution is required for patients with impaired renal function, as high concentrations may increase the risk of CNS effects, including seizures. Additionally, patients with a known history of penicillin allergy should be approached with great caution due to the documented potential for cross-allergenicity within the cephalosporin class. Prolonged use carries an officially noted risk of superinfection, such as overgrowth of non-susceptible organisms like Candida.

Overdose and Emergency Response

The official regulatory profile for Ultrasef (Cephradine) overdose explicitly defines the expected clinical presentation and the specific emergency actions required. The documented clinical manifestations of overdosage are concentrated in the gastrointestinal system and include nausea, vomiting, and diarrhoea.

A more severe outcome, potentially affecting the central nervous system, is the occurrence of convulsions (seizures), a risk associated with large-dose cephalosporin exposure. This risk is noted in official documentation as being potentially increased in patients with impaired renal function.

Management involves symptomatic treatment and the institution of supportive measures as clinically required, since regulatory information states that no specific antidote is known or documented for Cephradine. The drug is noted to be removable by hemodialysis, which may be utilized as a procedural intervention in cases of significant overdosage.

A regulatory-mandated response is required in all suspected cases: individuals must seek immediate medical attention at the first indication of a suspected overdose event or any adverse drug reaction. This immediate action is essential for managing the documented manifestations and potential severe outcomes.

Therapeutic Uses of Ultrasef

What Ultrasef Treats: Main Uses and Benefits

Ultrasef (Cephradine) is applied in addressing conditions marked by susceptible bacterial activity across key physiological systems, and is relevant for easing symptoms related to physical discomfort. As a first-generation cephalosporin, it is commonly used for infections spanning several domains, generally contributing to symptomatic support across a wide range of patient presentations.

Treating Acute Symptomatic Episodes

The medication is commonly used across conditions presenting with acute episodes of bacterial infections such as pharyngitis, tonsillitis, sinusitis, pneumonia, urinary tract infections (UTIs), and skin and soft tissue infections like cellulitis. It helps address symptom clusters that may become intense or disruptive, such as a severe sore throat or painful, burning urination (dysuria). The benefit contributes to easing the overall symptom load, which supports patients during difficult episodes by easing distress.

Support in Clinical Scenarios

It is applied across domains where additional symptomatic support is needed, including situations requiring surgical prophylaxis—a measure applied before procedures to mitigate risk—and contexts involving heightened systemic burden. This function provides supportive relief when symptoms interfere with routine activities, assisting with maintaining functional stability.


Quick Fact: Support in Acute Symptomatic Periods

Category Typical Symptom Support
Systemic Assistance with managing fever and chills
Localized Support for managing pain, swelling, and redness

Regulatory References

  1. NIH StatPearls overview on Cephalosporins

Eligibility and Restrictions for Use

Who Can and Cannot Use Ultravist?

This iodinated contrast agent is administered only via the intravenous or intra-arterial routes for diagnostic imaging procedures. Official regulatory information defines specific populations who must not receive the drug, or who require special consideration.

Eligibility Classification Population/Condition Regulatory Status
Contraindicated Intrathecal Use (administration into the spinal column) Must Not Use (Prohibited Route)
Contraindicated Pediatric patients undergoing preparatory dehydration (e.g., prolonged fasting) Must Not Use (Risk of renal failure)
Contraindicated Patients with known manifest hyperthyroidism Must Not Use

Populations for whom use is allowed generally include adults and pediatric patients over 2 years of age for the approved intra-arterial and intravenous procedures. However, caution is required in several groups due to increased risk of complications:

  • Condition-Specific Caution: Patients with pre-existing renal insufficiency, diabetes, multiple myeloma, congestive heart failure, or allergic disorders (e.g., bronchial asthma, history of contrast agent reaction) should receive the lowest necessary dose, as these conditions increase the risk of acute kidney injury or hypersensitivity reactions.
  • Age-Related Caution: Elderly patients should be monitored for potential reduced kidney function, which can affect drug clearance. Safety and efficacy are not established in children younger than two years old for certain procedures.
  • Lactation: Interruption of breastfeeding is generally considered not necessary, although discarding milk for 12 to 24 hours after administration may be considered to minimize infant exposure.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This section outlines the officially documented interaction patterns for Cephradine (Ultrasef) as stated in government regulatory sources, classified by their mechanistic basis.

Interaction Type Interacting Products/Category Official Outcome / Restriction
Exposure-Altering (PK) Probenecid Increases and prolongs serum concentrations by reducing renal tubular secretion.
Additive Toxicity (PD) Nephrotoxic Agents (e.g., Loop Diuretics, Aminoglycosides) May increase the risk of nephrotoxicity (kidney damage).
Efficacy Interference (PD) Bacteriostatic Drugs (e.g., Tetracyclines, Chloramphenicol) May interfere with the drug's bactericidal activity.

Official Interaction Statements

  • Probenecid co-administration is a pharmacokinetic interaction that raises Cephradine's systemic exposure due to competition for renal clearance [1.4, 1.5].
  • The combination with Loop Diuretics (such as Furosemide) or other nephrotoxic agents may increase the possibility of kidney damage [3.4, 4.1].
  • Oral products containing zinc may interfere with the absorption of Cephradine; the zinc-containing product must be administered at least three hours after taking the antibiotic [1.1].
  • The drug may cause a false-positive reaction when testing for glucose in urine using specific copper-reduction methods (e.g., Clinitest) [1.5].
  • Renal function monitoring is noted as necessary when Cephradine is used concomitantly with potent diuretics or Aminoglycosides, particularly in elderly patients or those with impaired renal function [3.5].
  • For parenteral preparations, the drug is noted as incompatible for mixing with other high molecular weight active drugs [1.7].

Mechanism of Action

Irreversible Inhibition of Bacterial Cell Wall Synthesis

Ultrasef (Ceftriaxone) primarily functions as a mechanism-based irreversible inhibitor of bacterial Penicillin-Binding Proteins (PBPs), which are bacterial transpeptidases. The drug's beta-lactam ring forms a covalent adduct with the PBP active site, preventing the enzyme from catalyzing the final peptidoglycan cross-linking step in cell wall assembly. This failure to construct a structurally intact and rigid cell wall renders the bacteria highly susceptible to osmotic pressure, leading directly to bacterial cell lysis and death (bactericidal action).

Modulating Glutamate Clearance (Host Secondary Mechanism)

Separately, in the host Central Nervous System, Ultrasef acts via a distinct mechanism by promoting the upregulation of the Glutamate Transporter (GLT-1/EAAT2) in astrocytes through the activation of the NF- kappaB pathway. This molecular action modulates the rate of extracellular glutamate clearance from the synaptic clefts, influencing host physiological functions independently of the antibacterial effect.

Dosage and Administration Information

How to Use Ultrasef

Ultrasef (Cephradine) administration is determined by the specific form and clinical context. The medicine is administered through oral, intramuscular (IM), or intravenous (IV) routes, utilizing forms such as capsules, oral suspension, or sterile powder for injection.

Standard Dosing and Frequency Patterns

The standard adult oral dose typically ranges from 250 mg to 1 g per dose, usually administered in divided doses every 6 or 12 hours. For patients requiring parenteral administration, the usual total daily dose ranges from 2 g to 4 g and is typically divided into four equal amounts (e.g., every 6 hours), with a maximum daily dose of up to 8 g for severe cases.

The medicine may be given without regard to meals. The duration of use is constrained by the type of use: treatment generally continues for at least 48 to 72 hours after symptoms resolve, with a minimum course of 10 days for infections caused by beta-hemolytic streptococci.

Administration Requirements and Adjustments

Specific procedures apply to its administration. For instance, the intravenous form is administered slowly over a 3- to 5-minute period, or as an infusion. Dosage adjustments are indicated for patients with renal impairment, with specific dose reductions based on their calculated creatinine clearance (CrCl). For pediatric patients (over 9 months), dosing is based on body weight, typically ranging from 25 to 100 mg/ kg/ day in divided doses, not to exceed 4 g daily.

Recent Clinical Evidence

Evidence for use in Skin and Soft Tissue Infections

Research was studied for its application in skin and soft tissue infections (SSTIs) using Randomized Controlled Trials (RCTs). These studies explored outcomes centered on clinical response, detailing how signs of infection evolved, and monitored microbiological endpoints. Findings describe patterns observed in these studies, which often focused on uncomplicated cases.

Evidence for use in Urinary Tract Infections

The evidence base for urinary tract infections (UTIs) relies on comparative clinical trials, mainly exploring acute and uncomplicated cases. Research examined overall therapeutic outcomes and tracked the rate of short-term recurrence. While microbiological outcomes were monitored, data for certain groups remain insufficient when considering complex infections.

Evidence for use in Respiratory Tract Infections

Controlled clinical trials were conducted to evaluate Ultrasef for respiratory tract infections, including pharyngitis and pneumonia, with studies monitoring clinical and bacteriological responses. The overall evidence quality in this area is generally considered moderate, as much of the foundational comparative work was studied during earlier periods.

Long-term follow-up and durability of research

The majority of studies were designed to monitor short-term symptom changes with typical follow-up durations limited to a few weeks. Research so far indicates that sustained outcomes beyond this immediate post-treatment window are not fully established, and long-term effects are not fully established regarding durability.

Studies in specific patient populations

Ultrasef was evaluated in both Adults and Children (including pediatric patients down to approximately nine months of age). However, data for certain groups remain insufficient. Specifically, the evidence for older adults with multiple existing health conditions is generally derived from subgroup analyses rather than dedicated, large-scale trials.

Evidence Gaps and Areas of Uncertainty

The research record highlights several areas where certainty remains low or where comparative evidence is lacking against the latest generation of antimicrobial agents. Furthermore, specialized applications, such as for surgical prophylaxis, are often highly focused on specific scenarios. The high prevalence of antibiotic resistance in contemporary settings means that the research does not determine whether an individual will respond similarly.

Key Studies & References Cephalosporins (StatPearls Monograph)

Frequently Asked Questions (FAQ)

Common questions about Ultrasef (FAQ)


Q: What is Ultrasef used for?

Ultrasef is approved for treating certain types of bacterial infections. A healthcare provider determines if it is appropriate for a patient's specific infection based on the product label and diagnostic testing.


Q: How should I take Ultrasef?

A healthcare professional will provide specific instructions for taking this medication, including the correct dose, frequency, and duration of treatment. It is important to follow their directions precisely.


Q: What should I do if I miss a dose?

If a dose is missed, a person should contact their prescribing doctor or pharmacist for guidance on how to proceed. It is generally not recommended to double the next dose to make up for a missed one.


Q: Can I stop taking Ultrasef once I feel better?

Treatment should be completed for the full duration prescribed by the healthcare provider, even if symptoms improve quickly. Stopping the medication early may allow the infection to return or become more difficult to treat.

How should Ultrasef be stored and disposed of?

How to Store and Dispose of Ultrasef (Cephradine)

The storage and disposal of Ultrasef must strictly follow the conditions specified in official regulatory labeling, which vary by product state.

Storage Conditions

Product State Temperature & Protection Stability Limit
Dry Powder/Capsules Store at controlled room temperature (15 C to 30 C), protected from light and moisture. Until expiry date
Reconstituted Suspension Store in a refrigerator (2 C to 8 C); do not freeze. 14 days
Reconstituted Injection Use within 2 hours at room temperature or up to 12 hours when refrigerated. Limited hours/days

All forms must be kept in the original, tightly closed container and stored out of the sight and reach of children.

Disposal

Any unused or expired medicine must be discarded according to local requirements for pharmaceutical waste. The product must not be discharged to sewer systems or released into the environment.

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

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