Cefixime

Common Uses

Cefixime is prescribed to treat specific infections caused by bacteria. It belongs to a class of drugs known as cephalosporin antibiotics, which work by stopping the growth of bacteria. Common conditions treated with this medication include:

• Respiratory Infections: This includes acute bronchitis and worsening symptoms of chronic bronchitis, as well as infections of the throat (pharyngitis) and tonsils (tonsillitis).
• Ear Infections: It is often used to treat middle ear infections (otitis media).
• Urinary Tract Infections (UTIs): Cefixime is used for uncomplicated infections of the urinary system.
• Sexually Transmitted Infections: It is used to treat uncomplicated gonorrhea affecting the cervix or urethra.

It is important to note that cefixime only treats bacterial infections. It will not work for viral infections, such as the common cold, the flu, or other viral respiratory illnesses. Using antibiotics when they are not needed increases the risk of developing an infection later that resists antibiotic treatment.

How Cefixime Works

Cefixime belongs to a group of medicines called cephalosporin antibiotics. It works by stopping the growth of bacteria and eliminating the infection.

To survive and multiply, bacteria must create a stable cell wall that holds the cell together and protects it from the environment. Cefixime interferes with the final stages of this wall-building process. By preventing the bacteria from forming these walls correctly, the medication causes the bacterial cells to become unstable, rupture, and die.

This medication is specifically designed to target bacterial processes and does not affect human cells in the same way. It is important to note that cefixime only treats bacterial infections; it will not work for viral infections, such as the common cold or the flu. Using antibiotics when they are not needed can lead to antibiotic resistance, making future infections harder to treat.

Common Side Effects

Many people using cefixime do not have serious side effects. The most frequently reported issues include:

• Diarrhea or loose stools
• Nausea or vomiting
• Stomach pain or indigestion
• Gas or bloating
• Headache
• Dizziness

Serious Side Effects

While less common, some side effects can be serious. Seek medical attention immediately if you experience:

• Severe diarrhea that is watery or bloody, which may occur with stomach cramps and fever (this can happen during treatment or up to several months after stopping the medication)
• Signs of an allergic reaction, such as a skin rash, hives, itching, or swelling of the face, lips, tongue, or throat
• Difficulty breathing, swallowing, or wheezing
• Yellowing of the eyes or skin (jaundice)
• Dark-colored urine or pale stools
• Unusual tiredness or extreme weakness
• New signs of infection, such as a persistent sore throat, chills, or mouth sores
• Seizures

Allergic Reactions

Cefixime is contraindicated in individuals with a known allergy to cephalosporin antibiotics. There is evidence of partial cross-allergenicity between penicillins and cephalosporins, meaning patients allergic to penicillin may also react to cefixime. Severe, acute hypersensitivity reactions, including anaphylaxis, have been reported. If an allergic reaction occurs, the medication is typically discontinued immediately.

Severe Skin Reactions

Serious skin conditions, such as Stevens-Johnson syndrome, toxic epidermal necrolysis, and drug rash with eosinophilia and systemic symptoms (DRESS), have been reported in patients taking cefixime. These conditions can be life-threatening and require immediate medical attention.

Clostridioides difficile-Associated Diarrhea

Treatment with antibacterial agents like cefixime can alter the normal flora of the colon, leading to the overgrowth of Clostridioides difficile. This can result in diarrhea ranging in severity from mild to fatal colitis. This condition may occur during treatment or more than two months after the antibiotic course is finished.

Kidney Function and Seizures

In patients with significant renal impairment, the dosage of cefixime may need to be adjusted by a healthcare provider. Several cephalosporins have been associated with triggered seizures, particularly in patients with kidney dysfunction when the dosage was not appropriately reduced.

Blood and Coagulation Issues

Some patients may experience a decrease in prothrombin activity, leading to an increased risk of bleeding. This is more common in individuals with kidney or liver impairment, those with poor nutritional status, or those on long-term anticoagulant therapy. Additionally, immune-mediated hemolytic anemia (a condition where red blood cells are destroyed) has been observed with cephalosporin use.

Development of Drug-Resistant Bacteria

Using cefixime in the absence of a proven or strongly suspected bacterial infection is unlikely to provide benefit and increases the risk of the development of drug-resistant bacteria.

Pregnancy

There are no adequate and well-controlled studies of cefixime use in pregnant women. Animal reproduction studies have not shown evidence of harm to the fetus at doses much higher than those used in humans. However, because animal studies do not always predict how a human will respond, cefixime should be used during pregnancy only if a healthcare provider determines it is clearly needed.

Breastfeeding

It is not known whether cefixime passes into human breast milk. Decisions regarding whether to continue breastfeeding or to use this medication should be made in consultation with a healthcare provider. In some cases, a doctor may recommend temporarily stopping breastfeeding while the mother is taking the drug.

Available Dosage Forms

Cefixime is available in several oral delivery formats to accommodate different patient needs:

• Tablets: Standard oral tablets for swallowing.
• Chewable Tablets: Tablets that can be chewed before swallowing.
• Capsules: Oral capsules containing the medication.
• Oral Suspension: A powder that is reconstituted into a liquid form, often used for pediatric patients or those who have difficulty swallowing solid pills.

FDA Approval and Indications

Cefixime was approved by the U.S. Food and Drug Administration (FDA) as a third-generation cephalosporin antibiotic. It is indicated for the treatment of specific infections caused by susceptible bacteria. Approved uses include:

• Uncomplicated urinary tract infections
• Otitis media (middle ear infections)
• Pharyngitis and tonsillitis
• Acute bronchitis and acute exacerbations of chronic bronchitis
• Uncomplicated gonorrhea (cervical or urethral)

Regulatory Safety Information

Cefixime does not have any FDA boxed warnings or Risk Evaluation and Mitigation Strategies (REMS). However, the FDA-approved labeling includes several important safety warnings:

• Hypersensitivity Reactions: The FDA warns that serious and occasionally fatal allergic reactions can occur. Cefixime is contraindicated in patients with a known allergy to cephalosporin antibiotics.
• Clostridioides difficile-associated diarrhea (CDAD): Like most antibacterial drugs, cefixime may cause CDAD, which can range in severity from mild diarrhea to fatal colitis. This occurs because the antibiotic alters the normal flora of the colon.
• Renal Impairment: For patients with significant kidney dysfunction, the FDA-approved labeling requires dosage adjustments to prevent the accumulation of the drug and potential neurological side effects, such as seizures.
• Drug Resistance: To maintain the effectiveness of cefixime and other antibacterial drugs, the FDA advises that it should only be used to treat infections that are proven or strongly suspected to be caused by susceptible bacteria.

While the FDA has issued safety communications for other antibiotic classes, such as fluoroquinolones, regarding risks like aortic ruptures, these specific warnings do not apply to the cephalosporin class or cefixime.

Generic Availability

Cefixime is available as a generic medication. Generic versions are typically more affordable than brand-name drugs because they do not require the same initial research and marketing costs. Choosing the generic version is a common way to reduce the out-of-pocket expense for this antibiotic.

Insurance Coverage

Most health insurance plans, including Medicare Part D and Medicaid, cover generic cefixime. The specific cost to the patient, such as a copayment or coinsurance, depends on the individual's insurance plan and where the drug falls on their formulary or drug list.

Factors Influencing Price

Several factors can affect the final price of a cefixime prescription:

• Formulation: The price may vary depending on whether the medication is provided as a tablet, capsule, or oral liquid suspension.
• Dosage and Duration: Higher strengths or longer courses of treatment will generally increase the total cost.
• Pharmacy Selection: Retail prices for the same medication can differ significantly between different pharmacies or mail-order services.

For those without insurance, pharmacy discount cards or manufacturer coupons may be available to help lower the retail price. It is often helpful to compare prices at multiple pharmacies to find the most cost-effective option.