Trusted SourceThomas C. Bailey, MDMedical Reviewer | Infectious Disease Specialist | Internal Medicine PhysicianView moreWritten by Sarah Alleman
Trusted SourceSarah AllemanAuthor | Infectious Disease SpecialistView moreCephadex 500 Mg (Cephalexin): Overview
Cephalexin works by interfering with the bacterial cell wall, helping stop susceptible bacteria from growing.
Cephadex 500 Mg contains cephalexin, a cephalosporin antibiotic used to treat certain bacterial infections affecting the respiratory tract, skin, urinary tract, and other areas.
Uses of Cephadex 500 Mg (Cephalexin)
- Treatment of certain bacterial infections of the throat and respiratory tract.
- Treatment of some skin and soft-tissue infections.
- Treatment of susceptible urinary tract infections.
- Treatment of certain ear infections and other infections caused by susceptible bacteria.
- Management of bacterial infections when cephalexin is considered an appropriate antibiotic.
How Cephadex 500 Mg (Cephalexin) Works
Cephalexin belongs to the cephalosporin family of antibiotics. It targets proteins bacteria need to build and maintain their protective cell walls. Without a stable cell wall, susceptible bacteria cannot continue growing and may die.
This medicine works against certain bacteria, but it does not treat viral illnesses such as colds or influenza. A healthcare professional should determine whether an infection is likely to respond to cephalexin.
How to Take Cephadex 500 Mg (Cephalexin)
Take Cephadex 500 Mg exactly as directed by your healthcare professional. Swallow the capsule with water and follow the prescribed timing and duration. It may be taken with food if stomach upset occurs, unless your prescriber gives different instructions.
Complete the prescribed course, even if symptoms improve, unless a healthcare professional tells you to stop. Do not share this antibiotic or use leftover capsules for a future illness. The available capsule options are 100 Capsule + 100 Capsule Free, 200 Capsule + 200 Capsule Free, and 300 Capsule + 300 Capsule Free.
Possible Side Effects
- Nausea or vomiting
- Diarrhea
- Stomach pain or indigestion
- Mild skin rash or itching
- Headache
Seek prompt medical attention for severe or persistent diarrhea, facial or throat swelling, breathing difficulty, widespread blistering rash, or signs of a serious allergic reaction.
Precautions & Warnings
- Tell your healthcare professional about allergies to cephalexin, other cephalosporins, penicillins, or any medicine.
- Provide your medical history, especially kidney disease, gastrointestinal disease, or previous antibiotic-related colitis.
- Use only for the infection and duration prescribed; unnecessary antibiotic use can contribute to resistance.
- Tell your healthcare professional about all medicines, supplements, and herbal products you use.
- Contact a healthcare professional if symptoms worsen, do not improve, or return after treatment.
Frequently Asked Questions about Cephadex 500 Mg (Cephalexin)
What infections can Cephadex 500 Mg treat?
Cephadex 500 Mg may be prescribed for certain bacterial infections of the respiratory tract, skin, urinary tract, ears, and other areas. Its suitability depends on the bacteria involved and your medical history, so it should be used only when recommended by a healthcare professional.
Is Cephadex 500 Mg effective for colds or flu?
No. Cephadex 500 Mg contains cephalexin, an antibiotic that acts against susceptible bacteria. Colds and influenza are usually caused by viruses, so cephalexin will not treat these illnesses or provide relief from ordinary viral symptoms.
What should I do if Cephadex 500 Mg causes diarrhea?
Mild diarrhea can occur with antibiotics, but severe, persistent, or bloody diarrhea requires prompt medical attention because it may indicate a more serious intestinal problem. Do not take additional antidiarrheal medicine without asking a healthcare professional.
Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice. Always consult your doctor or pharmacist before starting any medication.


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