Jin Mao

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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 Jin Mao

What is Jin Mao? (Cefuroxime)

Property Description
Active ingredient Cefuroxime (as Cefuroxime axetil or Cefuroxime sodium)
Form Tablet (film-coated), Oral Suspension, Powder for Injection
Pharmacological class Second-Generation Cephalosporin Antibiotic
General purpose Elimination of systemic bacterial infections
Origin Semi-synthetic
Rx/OTC Status Prescription-only (Rx)

What Type of Medicine is Jin Mao (Cefuroxime)?

Jin Mao is the trade name for a prescription-only semi-synthetic antibiotic whose active ingredient is the chemical compound Cefuroxime. This medicine is formally classified as a second-generation cephalosporin, positioning it within the larger pharmacological group of beta-lactam agents. This classification is clinically recognized for providing greater stability against certain destructive bacterial enzymes, specifically beta-lactamases, compared to first-generation agents. For the patient, this increased stability offers enhanced effectiveness against a wider range of susceptible Gram-positive and Gram-negative organisms, a key differentiating factor in anti-infective therapy.

Composition, Origin, and Available Forms

The therapeutic utility of Jin Mao relies on a single active ingredient, Cefuroxime, which is supplied in different dosage forms optimized for various routes of administration. A unique feature is the reliance on the prodrug Cefuroxime axetil for all oral dosage forms (tablet and suspension). The prodrug is chemically inactive until it is absorbed and converted by the body, a deliberate design to enhance absorption efficiency from the digestive tract. The parenteral forms, conversely, utilize Cefuroxime sodium for direct intravenous (IV) or intramuscular (IM) administration, typically reserved for more acute conditions.

What is the General Purpose of This Antibiotic?

The general purpose of Cefuroxime is the definitive elimination of susceptible bacterial organisms throughout the body. By belonging to the second-generation cephalosporin class, the drug functions as a potent bactericidal agent that specifically prevents the microorganisms from building and maintaining their essential cell wall structure. This action establishes its key role in the effective management of systemic bacterial infections, making it a well-established agent in scenarios where reliable pathogen clearance is required.

What side effects are possible with Jin Mao?

Jin Mao belongs to the Monoamine Oxidase Inhibitor (MAOI) class of medications, which carries specific and serious safety considerations documented by regulatory authorities.

Serious Adverse Reactions and Warnings

Jin Mao is associated with a Black Box Warning regarding an increased risk of suicidal thoughts and behaviors in children, adolescents, and young adults (up to age 25), particularly when starting treatment or changing dosage.

Two critical, potentially life-threatening reactions are associated with its use:

  1. Hypertensive Crisis (Tyramine Pressor Response): This is a sudden, dangerous rise in blood pressure, potentially leading to cerebral hemorrhage or death. It is triggered by consuming foods and beverages rich in the amino acid tyramine (e.g., aged cheeses, cured meats, fermented products, certain alcoholic beverages) or by drug-drug interactions with certain cold remedies or sympathomimetic agents.
  2. Serotonin Syndrome: This potentially fatal condition results from excessive serotonin levels and usually occurs when Jin Mao is combined with other serotonergic agents, such as other antidepressants, specific pain medications, or herbal supplements (e.g., St. John's Wort). Symptoms include agitation, confusion, fever, rapid heart rate, and severe muscle rigidity.

Common Side Effects

Commonly reported adverse reactions include disorders of the nervous, gastrointestinal, and general system-organ classes, such as dry mouth, nausea, constipation, diarrhea, drowsiness, insomnia, dizziness, and sexual dysfunction. Hypotension, or low blood pressure (especially when standing), is also frequently reported.

Safety Restrictions and Limitations

A mandatory 14-day washout period is required when switching between Jin Mao and most other antidepressants to prevent Serotonin Syndrome. Due to the high risk of a Hypertensive Crisis, patients must adhere to a strict low-tyramine diet throughout treatment and for at least two weeks after discontinuation. Jin Mao is also contraindicated for use with many other medications, including certain cold/allergy drugs and certain pain relievers. Caution is advised in patients with pre-existing cardiovascular disease or uncontrolled hypertension.

Overdose and Emergency Response

Overdose and when to seek help

An overdose of Jin Mao (Cefuroxime) is formally documented in regulatory labeling as having the primary risk of neurotoxicity. Excessive systemic drug levels may lead to signs of cerebral irritancy, potentially resulting in convulsions and generalized seizures. The drug’s official regulatory profile indicates a risk of severe outcomes, including encephalopathy. Immediate medical attention is required for all suspected overdoses.

Urgent help must be sought if life-threatening manifestations are observed. Call emergency services immediately if the person experiences severe, uncontrolled seizures, collapse, trouble breathing, or is unable to be awakened. Further official instructions include contacting a Poison Control Helpline as directed by national public health guidance.

The official management of Cefuroxime overdose is symptomatic and supportive. Regulatory documents state that no specific antidote is known. However, procedures such as haemodialysis and peritoneal dialysis are explicitly documented measures that can be used in a supervised clinical setting to reduce excessively high drug levels in the bloodstream. Individuals with pre-existing Central Nervous System (CNS) disorders, older age groups, and those with renal impairment are specifically noted in prescribing information as having an increased risk for neurotoxic events during overexposure.

Therapeutic Uses of Jin Mao

Jin Mao (Cefuroxime) is commonly used to address a wide array of bacterial infections throughout the body, providing support in addressing the bacterial cause of illness. The use is relevant for managing conditions driven by susceptible bacterial organisms to assist in easing acute symptoms and supporting functional stability. Its use is aligned with established therapeutic indications, and it is applied across therapeutic domains where short-term symptomatic assistance is needed.

The medication is relevant for easing symptoms related to inflammatory or irritative states in conditions characterized by periods of heightened symptoms, including acute bacterial sinusitis, otitis media (ear infection), pharyngitis, uncomplicated skin and soft tissue infections, and uncomplicated urinary tract infections (UTIs). It also plays a role in managing acute exacerbations of chronic bronchitis, pneumonia, and early-stage Lyme disease.

“Treatment is applied in contexts where symptoms may interfere with daily functioning, and supportive relief helps patients cope more steadily with these difficult episodes.”

Quick Fact Block

Quick Fact: Support for Symptom Management
Respiratory Comfort: Supports the patient during episodes involving cough, fever, and chest discomfort related to bronchitis or pneumonia.
Support for Localized Discomfort: Helps address symptoms related to inflammatory or irritative states in conditions like skin infections (cellulitis) and acute ear infections.
Functional Stability: Assists with maintaining functional stability in conditions marked by systemic discomfort, such as UTIs and specific systemic infections.

Regulatory References

  1. Official FDA Drug Label for Cefuroxime Axetil

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Jin Mao (Cefuroxime)

Official regulatory guidelines define specific populations who are eligible for Jin Mao, as well as those who are strictly contraindicated or require conditional use. Eligibility is primarily determined by allergy history, age, and organ function.

Absolute Contraindications

The medicine must not be used by patients with a known hypersensitivity to the active substance, Cefuroxime, or to any other cephalosporin antibiotic. Use is also strictly prohibited for individuals with a history of a severe allergic reaction (e.g., anaphylaxis) to any other beta-lactam antibacterial agent (including penicillins).

Age-Related Eligibility

Age Group Eligibility Status
Infants under 3 months Use is not established and not recommended.
Children under 5 years Tablets are not suitable; oral suspension is required.
Adults and Adolescents Approved for all labeled indications (generally 13 years old).

Conditional Use and Restrictions

Patients with markedly impaired renal function (Creatinine Clearance < 30 mL/minute) require a dosage reduction as part of conditional use. Use during pregnancy and lactation is conditional, permitted only after a clear determination that the clinical benefit outweighs the risk. The oral formulation is not recommended for patients with severe intestinal disorders causing vomiting and diarrhea, due to potential absorption issues.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Cefuroxime (Jin Mao) has officially documented interaction patterns primarily involving changes in drug exposure, gut absorption, and effects on the actions of co-administered medicines, as stated in regulatory prescribing information.

Pharmacokinetic and Exposure Interactions

Co-administration with Probenecid is not recommended because this medicine inhibits the renal tubular secretion of Cefuroxime, which significantly increases systemic exposure (AUC and Cmax) and lengthens the elimination half-life. Additionally, medicines that reduce gastric acidity (e.g., antacids, H2-receptor antagonists) may cause a lower oral bioavailability of Cefuroxime axetil, potentially counteracting the beneficial effect of taking the medicine with food. The oral suspension form must be taken with food to ensure proper absorption, while the tablet form may be taken with or without food.

Pharmacodynamic and Diagnostic Interference

  • Oral Anticoagulants: Concomitant use with oral anticoagulants, such as Warfarin, may increase the International Normalized Ratio (INR); official labeling advises prothrombin time monitoring for at-risk patients.
  • Oral Contraceptives: Cefuroxime may potentially reduce the efficacy of combined oral contraceptives due to effects on gut flora that can lower oestrogen reabsorption.
  • Diagnostic Tests: The medicine can result in a false-positive Coombs test result and may also cause false-positive results for glucose in the urine when tested using copper reduction methods.

Mechanism of Action

The mechanism of action for Jin Mao involves its function as a reversible inhibitor of the monoamine oxidase A (MAO-A) enzyme. MAO-A is a mitochondrial-bound isoenzyme distributed in the central nervous system, gastrointestinal tract, and liver. This enzyme normally catalyzes the oxidative deamination and subsequent degradation of monoamine neurotransmitters, specifically serotonin, norepinephrine, and dopamine, as well as certain dietary amines. By reversibly binding to and inhibiting MAO-A, Jin Mao prevents the catabolism of these neurotransmitters within the presynaptic terminals and synaptic cleft. This inhibition leads to an accumulation and increased synaptic availability of free serotonin, norepinephrine, and dopamine. The resulting elevated neurotransmitter concentrations facilitate enhanced and prolonged signal transduction across various neuronal pathways, leading to systemic physiological modulation of central monoaminergic systems.

Dosage and Administration Information

How to Use Jin Mao: Administration Guidelines

Jin Mao (Cefuroxime) usage follows specific guidelines that detail the required route, dose, and frequency. The medicine is supplied for oral use (as Cefuroxime axetil in tablets or suspension) and for parenteral use (as Cefuroxime sodium for IV or IM injection).


Administration Overview

Feature Description
Route of Administration Oral (PO), Intravenous (IV), or Intramuscular (IM).
Dosing Schedule Oral: Typically 250 mg to 500 mg twice daily (q12h). Parenteral: Standard is 750 mg every 8 hours (q8h), increasing to 1.5 g every 6 to 8 hours for severe infections.
Duration of Course Usually 7 to 10 days for acute infections, though an extended course of 20 days is specified for conditions like early Lyme disease.
Intake Rules The Oral Suspension must be taken with food to enhance absorption; tablets may be taken with or without food.
Handling Constraints Tablets must be swallowed whole and are not to be crushed, broken, or chewed. The tablet and suspension formulations are not substitutable on a milligram-for-milligram basis.

Population and Procedural Rules

Administration frequency must be adjusted for patients with renal impairment (creatinine clearance <30 mL/min) and for patients undergoing hemodialysis. The typical treatment pattern involves fixed-interval dosing on a twice-daily or three-times-daily schedule, ensuring consistent levels of the active ingredient are maintained throughout the duration of the defined therapeutic course.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Jin Mao (Cefuroxime)

Available research describes how Jin Mao (Cefuroxime) has been studied in clinical trials and systematic reviews to explore its evaluation for specific bacterial infections. The research available, primarily from Randomized Controlled Trials (RCTs), provides context on what has been observed in study populations, but does not offer personal prediction or clinical advice.

Evidence for Use in Acute Bacterial Sinusitis and Ear Infections

Research has explored Cefuroxime in study populations, including adults, adolescents, and children, experiencing acute bacterial sinusitis and otitis media (AOM). Studies were designed to compare its evaluation against other antibiotics evaluated in research, focusing on short-term outcomes related to symptom change like fever, pain, and discharge. Findings from comparative trials often described patterns of symptom evolution that were similar between Cefuroxime and other antibiotics evaluated in the studies. What remains uncertain is the heterogeneity in how trials diagnosed bacterial versus non-bacterial infections, and there is limited information for long-term outcomes beyond the immediate post-treatment period for many study groups.

Research on Early-Stage Lyme Disease

Cefuroxime was studied for the early manifestation of Lyme disease, known as Erythema Migrans, in adults and children. Research explored short-term changes related to the evolution of the rash and systemic symptoms. Uniquely, some key studies monitored outcomes for extended periods, sometimes up to one year, to observe patient outcomes. Studies reported that this regimen was associated with the evolution of the characteristic rash and systemic symptoms. Long-term follow-up findings describe patterns where the incidence of progression to more complex forms of the disease was observed in similar proportions of patients evaluated in the comparative trials.

What Research Gaps and Uncertainties Remain

Evidence quality varies across studies, and many older trials were comparative, designed to show similar outcomes rather than specific absolute effect. Comparative evidence is lacking for some conditions against the most current first-line therapies. The global rise of antibiotic resistance among common pathogens presents an ongoing factor that must be considered when interpreting older microbiological findings. Specifically, long-term effects are not fully established for most conditions, and research is ongoing to address the impact of evolving bacterial resistance patterns. The results apply only to the populations studied.

Key Studies & References

  1. Label: CEFUROXIME AXETIL tablet (Ceftin) - U.S. Food and Drug Administration (FDA)

Frequently Asked Questions (FAQ)

Common questions about Jin Mao (FAQ)

Q: Does Jin Mao interact with alcohol, and is it safe to drink moderately while on this antibiotic?

Official regulatory information on Jin Mao includes warnings about potential central nervous system effects, such as dizziness or drowsiness. These warnings often lead to a general caution regarding the concurrent use of alcohol and operating machinery until a person knows how the medicine affects them.

Q: I'm on the pill; will Jin Mao affect my birth control?

Regulatory documents indicate that Cefuroxime may potentially reduce the effectiveness of combined oral contraceptives. This potential is noted to be due to the antibiotic's effects on the natural gut flora, which can affect the absorption of contraceptive hormones.

Q: What is the difference between the tablets and the oral suspension?

Regulatory documents state that the tablet and oral suspension forms are not considered milligram-for-milligram equivalent and should not be substituted for one another. The official product information specifies that the oral suspension must be taken with food to ensure proper absorption, a rule which does not apply to the tablets.

Q: How long does it take for Cefuroxime to start working after I take the first dose?

Pharmacokinetic studies documented in the official labeling show that after taking an oral dose, the concentration of the active drug in the bloodstream typically reaches its peak in about 2 to 3 hours. This indicates when the concentration of the drug reaches its maximum level in the bloodstream.

Q: Can Jin Mao be used to treat viral infections like the flu or common cold?

Official product information clarifies that Jin Mao is classified as an antibiotic and is specifically indicated only for the treatment of susceptible bacterial infections. It is not intended to treat viral infections, such as the common cold or the flu.

Q: What is the maximum single dose of Cefuroxime that can be given?

The official product labeling provides various dosing schedules based on the type and severity of the infection being treated. The highest doses detailed in the product labeling are typically reserved for patients with severe or life-threatening conditions, as determined by a healthcare provider.

Q: What are the signs of an allergic reaction to Cefuroxime I should look out for?

Official warnings and precautions indicate that severe allergic reactions are possible with this medicine. These signs may include hives, difficulty breathing, or swelling of the face or throat, which is why emergency medical attention may be needed if they occur.

How should Jin Mao be stored and disposed of?

How to Store and Dispose of Jin Mao?

Official storage and disposal requirements for Jin Mao (Cefuroxime) are strictly defined by the dosage form.

Dosage Form Storage Requirement Stability After Reconstitution
Tablets / Dry Powder Store below 30 C in the original, tightly closed container. Protect from moisture and light. Not applicable
Reconstituted Suspension Store under refrigeration (2 C to 8 C) to maintain stability. Discard unused portion after 10 to 14 days.

All forms must be stored out of the sight and reach of children. Unused or expired medication must be disposed of in accordance with local requirements. It is officially stated that the antibiotic should not be released to the environment, particularly into sewers or surface water.

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

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