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Ancef (Generic Cefazolin Injection)

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Why is this medication prescribed?

Illnesses of the skin, bones, joints, genitalia, blood, heart valve, respiratory tract (including pneumonia), biliary tract, and urinary tract are among the bacterial infections that are treated with cefazolin injection. To avoid an infection in the patient, cefazolin injection may also be administered prior to, during, and occasionally just after operation. Cefazolin injection belongs to the group of drugs known as cephalosporin antibiotics. It eliminates bacteria to operate.

Colds, the flu, or other viral diseases cannot be treated with antibiotics, such as cefazolin injection. Antibiotic use that is not necessary raises the likelihood of developing a later infection that is resistant to antibiotic treatment.

How should this medicine be used?

Cefazolin injection is available as a premixed solution that must be injected intravenously (into a vein) over a 30-minute period or as a powder that must be mixed with liquid. You can also administer cefazolin injection intramuscularly (into a muscle). Typically, it is administered every 6, 8, or 12 hours. The type of illness you have and how your body reacts to the medication will determine how long your treatment will last.

Cefazolin injection can be given to you in a hospital or it can be taken at home. Your healthcare practitioner will instruct you on how to utilise the medication if you will be receiving cefazolin injection at home. Make sure you comprehend these instructions, and if you have any issues, consult your healthcare professional.

During the first several days of cefazolin injectable therapy, you should start to feel better. Call your doctor if your symptoms don’t go away or get worse.

Even if you feel better, keep using the cefazolin injectable until the prescription is finished. Your illness could not be entirely treated if you stop using cefazolin injection too soon or skip doses, and the bacteria might develop an antibiotic resistance.

Other uses for this medicine

In order to avoid heart valve infections in certain penicillin allergic individuals who have a heart disease and are undergoing dental or upper respiratory tract (nose, mouth, throat, voice box) procedures, cefazolin injection is occasionally administered. In order to treat some pregnant women who are allergic to penicillin and to avoid the infant’s illness, cefazolin injection is occasionally utilised.

Ask your doctor or pharmacist for more details if you believe this drug should be used for something else.

What special precautions should I follow?

Before taking cefazolin injection,

  • You should inform your doctor and pharmacist if you have any allergies to cefazolin, carbapenem antibiotics, other cephalosporin antibiotics like cefaclor, cefadroxil, cefdinir, cefditoren (Spectracef), cefepime (Maxipime), cefixime (Suprax), cefotaxime (Claforan), cefotetan, cefoxitin (Mefox If you have a reaction to any of the chemicals in cefazolin injection, let your doctor know right away. Request an ingredient list from your pharmacist.
  • Inform your doctor and pharmacist about all prescription and over-the-counter drugs, vitamins, dietary supplements, and herbal products that you are now taking or intend to use. Remember to bring up probenecid (Probalan). Your physician might need to adjust the dosage of your drugs or keep a close eye on you for side effects.
  • Inform your doctor if you have or have ever had renal disease, colitis (a disorder that causes swelling in the lining of the colon [large intestine]), or any other gastrointestinal disease (GI; affecting the stomach or intestines).
  • If you are breastfeeding a child or intend to become pregnant, let your doctor know. Call your doctor if you get pregnant while taking cefazolin injectable.

What special dietary instructions should I follow?

Keep eating normally unless your doctor instructs you otherwise.

What should I do if I forget a dose?

The missed dose should be taken as soon as you remember. If the next dose is soon due, skip the missed one and carry on with your regular dosing plan. To make up for a missing dose, do not take a second one.

What side effects can this medication cause?

Side effects from cefazolin injection are possible. If any of these symptoms are severe or do not go away, let your doctor know right once:

  • Urinary itch
  • White spots in the mouth
  • Reduced appetite
  • Heartburn
  • Gas
  • Nausea
  • Vomiting
  • Diarrhea
  • Headache
  • Dizziness
  • Confusion
  • Weakness
  • Tiredness
  • Drowsiness
  • Pain, redness, swelling, or bleeding close to the injection site for cefazolin

Some adverse effects can be very harmful. Stop using cefazolin injection and seek emergency medical attention if you suffer any of the following symptoms:

  • During treatment or for up to two or more months after stopping treatment, you may experience fever, stomach pain, or bloody or watery stools
  • Rash
  • Hives
  • Itching
  • Breathing or swallowing challenges
  • Skin that is bursting, peeling, or shedding
  • Swelling of the feet and legs
  • Less urinations
  • Dark faeces
  • Yellowing of the eyes or skin
  • Stomach’s upper right side is in pain.
  • Fainting
  • A recurrence of infection-related symptoms including fever, chills, or sore throat

Other negative effects from cefazolin injection are possible. If you experience any strange issues while taking this drug, call your doctor right away.

You or your doctor can submit a report to the Food and Drug Administration’s (FDA) MedWatch Adverse Event Reporting programme online or by phone if you have a serious side event (1-800-332-1088).

What should I know about storage and disposal of this medication?

How to store your medication will be explained to you by your doctor. Only store your medication as recommended. Make sure you are aware of the right pharmaceutical storage techniques.

Unused prescriptions must be disposed of carefully to prevent pets, kids, and other people from ingesting them. You should not, however, dispose of this medication in the toilet. Instead, utilising a medicine take-back programme is the easiest approach to get rid of your medication. To find out about take-back programmes in your area, speak with your pharmacist or the garbage/recycling department in your city. If you do not have access to a take-back programme, see the FDA’s Safe Disposal of Medicines website at for additional information.

In case of emergency/overdose

Call the poison control hotline at 1-800-222-1222 in the event of an overdose. Additionally, information can be found online at Call 911 right once if the person has collapsed, experienced a seizure, is having difficulty breathing, or cannot be roused.

Overdose signs could include the following:

  • Seizures

What other information should I know?

Keep all of your appointments with your physician and the lab. To monitor your body’s reaction to cefazolin injection, your doctor may request specific lab tests.

Inform the lab staff and your doctor that you are taking cefazolin injection prior to any laboratory test.

Use Clinistix or TesTape (not Clinitest) to test your urine for sugar if you have diabetes and are taking this medicine.

You should keep a written record of every medication you take, including any over-the-counter (OTC) items, prescription drugs, and dietary supplements like vitamins and minerals. This list should be brought with you whenever you see a doctor or are admitted to the hospital. You should always have this information with you in case of emergencies.

Brand names

  • Ancef®
  • Kefzol®
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