Cefalexin is primarily used for managing various bacterial infections and belongs to the cephalosporin group of antibiotics.
It is effective against a range of infections including respiratory tract infections, middle ear infections (otitis media), skin and soft tissue infections, bone and joint infections, genitourinary tract infections, and dental infections.
Diarrhoea
Nausea and vomiting
Abdominal pain
Skin rash
Headache
Cefalexin is a first-generation cephalosporin antibiotic.
It functions by blocking the formation of the bacterial cell wall. It does this by attaching itself to and making inactive the penicillin-binding proteins (PBPs). These proteins are found on the inner side of the bacterial cell wall. When these proteins are inactivated, they interfere` with the making of peptidoglycan, a key part of the bacterial cell wall. As a result, the bacterium's cell wall becomes weak and gets damaged, causing the bacterium to die. This is how Cefalexin manages a wide variety of bacterial infections.
BDS, MDS
Bachelor of Dental Surgery
Cefalexin is available for use via oral route in the form of capsules, tablets, chewable tablets, and oral suspension. This allows for ease of administration and flexibility in dosage adjustment.
The medicine is meant for both adults and children. The age range for children to take this medicine begins from 12 months onwards. It is recommended to consult your doctor before administration.
Cefalexin is contraindicated in patients with known hypersensitivity to cephalosporin antibiotics.
Also, it should not be administered to patients with a history of severe allergic reactions to similar drugs like penicillin.
Cefalexin may interact with probenecid (a medicine used for gout), metformin (used in diabetes management), warfarin (an anticoagulant), and nephrotoxic medicines (like aminoglycosides such as gentamicin, and loop diuretics like furosemide).
An overdose of Cefalexin can cause symptoms like nausea, vomiting, stomach pain, diarrhoea and blood in urine. If an overdose is suspected, immediate medical attention should be sought.
If you miss a dose of Cefalexin, take it as soon as you remember. However, if it is close to the time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double up on doses.
Most side effects are temporary and generally harmless and resolve when discontinuing this medicine. However, if you experience any severe side effects or worsening of any of the symptoms, please consult your doctor.
Drinking plenty of water can help manage some gastrointestinal side effects such as nausea and diarrhoea.
Taking the medication with or after meals can help minimise gastrointestinal upset.
Cefalexin may cause dizziness or fatigue in some individuals. If you experience these side effects, avoid driving and operating heavy machinery until you are sure you can perform such activities safely.
Cefalexin should only be used during pregnancy if clearly needed, as advised by your doctor.
It is excreted in human milk in low concentrations. Therefore, caution should be exercised when administering Cefalexin to breastfeeding mothers.
Patients with kidney disease should exercise caution when taking Cefalexin, as dose adjustments may be necessary based on the severity of renal impairment.
To manage bacterial infections that Cefalexin is used for, maintaining good personal hygiene is essential. This includes frequent hand washing, keeping wounds clean and covered, and avoiding close contact with people who are infected.
A well-balanced diet rich in fruits, vegetables, lean proteins, and whole grains can help strengthen the immune system and fight off infections.
Regular physical activity can also boost your immune system and help prevent bacterial infections.
Adequate rest and sleep can help your body recover faster if you have an infection.
Stay hydrated by consuming an adequate amount of fluids daily. This will help flush out the bacteria from your system.
Frequently asked questions
Cefalexin is not an over-the-counter medication and requires a prescription from a doctor.
Cefalexin does not commonly cause sleep disturbances. However, as each individual's body responds differently to medicines, some may experience unusual side effects. If you notice any sleep problems after starting Cefalexin, consult your doctor.
There is currently no scientific evidence to suggest that Cefalexin affects fertility. However, if you are trying to conceive and have any concerns, please consult with your doctor.
Cefalexin should be taken as prescribed by your doctor. The dosage and duration depend on the type and severity of the infection being managed.
Cefalexin starts working soon after it is taken but the time it takes to see improvement in symptoms can vary depending on the type and severity of the infection.
The time to take Cefalexin can vary based on the prescription given by your doctor. Always follow your doctor's advice for when and how often to take this medicine.
Yes, Cefalexin can be used to manage bacterial infections related to dental health such as gingivitis and periodontitis. It is always advised to consult your doctor for the appropriate medication and dosage for your specific condition.
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