Cefotetan

Bacterial Infections

Cefotetan is used to treat a variety of infections caused by susceptible bacteria. These include:

• Urinary tract infections: Infections of the bladder, kidneys, or urethra.
• Lower respiratory tract infections: Such as pneumonia.
• Skin and skin structure infections: Bacterial infections affecting the skin and underlying tissues.
• Gynecological infections: Including pelvic inflammatory disease, endometritis, and pelvic cellulitis.
• Intra-abdominal infections: Such as peritonitis.
• Bone and joint infections: Bacterial growth in the bones or joints.

Surgical Prevention

This medication is frequently used for surgical prophylaxis. It is administered to patients before or during surgery to help prevent the development of infections that may occur as a result of the procedure.

Limitations of Use

Cefotetan is only effective against bacterial infections. It will not work for viral infections, such as the common cold or the flu. Using antibiotics when they are not necessary can lead to antibiotic resistance, making future infections harder to treat.

Mechanism of Action

Cefotetan belongs to a group of medicines called cephalosporin antibiotics. It works by interfering with the formation of the bacterial cell wall, which is essential for the bacteria's survival and growth.

To function properly, bacteria must constantly build and repair their outer walls. Cefotetan binds to specific proteins inside the bacteria, blocking the final steps of this construction process. This causes the cell wall to become weak and unstable.

As the cell wall breaks down, the bacteria can no longer maintain their internal pressure and eventually burst, leading to their death. Because it directly kills the bacteria, cefotetan is considered a bactericidal antibiotic.

Targeted Infections

This medication is effective against a broad range of bacteria, including:

• Gram-positive bacteria
• Gram-negative bacteria
• Anaerobic bacteria (bacteria that can live without oxygen)

It is important to note that cefotetan only treats infections caused by bacteria. It does not work for viral infections, such as the common cold or the flu.

Common Side Effects

Many people using cefotetan do not experience significant side effects. When they do occur, common symptoms may include:

• Diarrhea
• Nausea or vomiting
• Stomach pain
• Pain, swelling, or redness at the injection site
• Fever or chills
• Skin rash or itching

Serious Side Effects

Contact a healthcare provider immediately if you experience any of the following serious symptoms:

• Severe stomach cramps or watery or bloody diarrhea, which may occur during treatment or several months after the last dose
• Signs of a serious allergic reaction, such as hives, swelling of the face, lips, or throat, and difficulty breathing
• Unusual bruising or bleeding
• Yellowing of the eyes or skin (jaundice) or dark-colored urine
• Pale skin, unusual weakness, or shortness of breath
• Seizures
• Decreased urination

Cefotetan can also cause a specific reaction if alcohol is consumed during treatment or for several days after the last dose. Symptoms of this reaction may include flushing, sweating, headache, and a rapid heartbeat.

Allergic Reactions

Serious and occasionally fatal hypersensitivity (allergic) reactions have been reported with cefotetan. Before starting treatment, it is important to determine if there is a history of previous hypersensitivity reactions to cefotetan, other cephalosporins, penicillins, or other drugs. There is a risk of cross-sensitivity among beta-lactam antibiotics. If an allergic reaction occurs, the medication must be discontinued immediately.

Hemolytic Anemia

Immune-mediated hemolytic anemia, a condition where red blood cells are destroyed faster than they can be replaced, has been observed in patients receiving this medication. This condition can be severe or fatal. If a patient develops anemia during or within three weeks of treatment, healthcare providers typically perform diagnostic tests and may stop the medication. Cefotetan is contraindicated in patients who have previously experienced cefotetan-associated hemolytic anemia.

Alcohol Interaction

A disulfiram-like reaction may occur if alcohol is consumed during or within 72 hours after receiving cefotetan. Symptoms can include flushing, sweating, headache, and a rapid heartbeat. Patients are generally advised to avoid alcohol consumption during this timeframe.

Blood Clotting and Bleeding

Cefotetan may interfere with vitamin K metabolism, which can increase the risk of bleeding by prolonging prothrombin time. This risk is higher in individuals with kidney or liver impairment, those with poor nutritional status, or those on long-term therapy. Monitoring of blood clotting parameters may be necessary for at-risk patients, and vitamin K administration may be considered if indicated.

Diarrhea and Colitis

Nearly all antibacterial agents, including cefotetan, can cause Clostridioides difficile-associated diarrhea (CDAD). This can range in severity from mild diarrhea to fatal inflammation of the colon. If significant or persistent diarrhea occurs, further medical evaluation is required, as the condition may develop more than two months after the antibiotic course is finished.

Seizure Risk

Like other cephalosporins, cefotetan may trigger seizures, particularly in patients with kidney impairment if the dosage is not appropriately adjusted. If seizures occur, the medication should be discontinued and appropriate medical treatment started.

Drug Resistance

Prescribing cefotetan 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 cefotetan use in pregnant women. Research involving animals has shown that high doses of the medication did not cause harm to the developing fetus or affect fertility. However, because animal studies do not always predict how a drug will affect humans, cefotetan should be used during pregnancy only if a healthcare provider determines it is clearly necessary.

Labor and Delivery

The safety and effectiveness of cefotetan during labor and delivery have not been established. It is generally only used during this time if there is a clear clinical requirement.

Breastfeeding

Cefotetan is excreted into human breast milk in very low concentrations. While these small amounts are generally not expected to cause significant issues, caution is advised when the drug is administered to a nursing mother. Individuals should discuss the potential risks and benefits of breastfeeding while using this medication with their healthcare team.

Available Forms

Cefotetan is administered by injection, either into a vein (intravenous) or into a muscle (intramuscular). It is available in the following formats:

• Powder for Injection: This form is provided in vials and requires mixing with a sterile liquid before administration.
• Premixed Solution: This form is provided in plastic containers for intravenous infusion. These containers are typically kept frozen and must be thawed before use.

FDA Approval Status

Cefotetan was first approved by the U.S. Food and Drug Administration (FDA) in the 1980s. It is classified as a second-generation cephalosporin antibiotic. While the original brand-name version, Cefotan, has been discontinued, generic versions remain available for clinical use.

Approved Indications

The FDA has approved cefotetan for the treatment of several types of infections caused by susceptible strains of microorganisms, including:

• Urinary tract infections
• Lower respiratory tract infections
• Skin and skin structure infections
• Gynecologic infections
• Intra-abdominal infections
• Bone and joint infections

It is also indicated for perioperative prophylaxis to reduce the incidence of certain post-operative infections in patients undergoing surgical procedures classified as contaminated or potentially contaminated.

Regulatory Safety Information

There are currently no boxed warnings or Risk Evaluation and Mitigation Strategies (REMS) associated with cefotetan. However, the FDA-approved labeling includes warnings regarding the risk of Clostridioides difficile-associated diarrhea (CDAD) and the potential for severe hypersensitivity reactions. Like other antibiotics, it should only be used to treat infections proven or strongly suspected to be caused by bacteria to prevent the development of drug-resistant bacteria.

You should not drink alcohol while receiving cefotetan and for at least 72 hours (3 days) after your last dose. Consuming alcohol during this time can cause a disulfiram-like reaction, which results in severe physical discomfort.

Symptoms of this reaction may include:

• Stomach cramps
• Nausea and vomiting
• Headache
• Flushing or redness of the face
• Fainting
• Shortness of breath
• Rapid heartbeat

It is important to check the ingredients of other medications, such as cough and cold syrups, to ensure they do not contain alcohol while you are using cefotetan.