Cephalexin
Uses of Cephalexin
Cephalexin is primarily used to manage various bacterial infections and belongs to the class of first-generation cephalosporins.
It may also be used for preventive purposes in certain surgical procedures.
Side effects of Cephalexin
Diarrhoea
Nausea and vomiting
Headaches
Skin rash
Abdominal pain
How Cephalexin works
Cephalexin is used for treating certain bacterial infections like pneumonia and other respiratory tract infections.
Cephalexin is a first-generation cephalosporin antibiotic. It interferes with creation of the bacterial cell walls by binding to proteins within them. This action prevents the bacteria from completing their cell wall, which is crucial for their growth and survival.
Certified content
Written By
Doctor of Medicine
Reviewed By
BMS, FMC, MD Resident
Expert Advice
Dosage Forms Available
Cephalexin can be taken orally (capsules, tablets, oral suspension, and chewable tablet).
Age and Dose Restrictions
This medication is suitable for adults and children who are at least one year old.
Contraindications
Cephalexin is contraindicated in patients with known hypersensitivity to any component of the formulation, including Cephalexin itself and other cephalosporins.
Other Medications to Avoid
Cephalexin can interact with probenecid (a uricosuric medicine), aminoglycosides (like gentamicin and amikacin), anticoagulants (such as warfarin and heparin) and antacids or H2-receptor antagonists (like ranitidine and famotidine).
Overdose and Missed Dose
Overdosing on Cephalexin may result in severe nausea, vomiting, diarrhoea, epigastric distress, and bloody stools. If you suspect you have taken an overdose, seek immediate medical attention.
If you miss a dose of Cephalexin, take it as soon as you remember. However, if it is close to the time for your next dose, skip the missed dose and continue your regular schedule. Do not double the dose to compensate for the missed one.
Management of Side Effects
Most side effects are temporary and generally harmless and resolve after 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 alleviate common side effects such as nausea and diarrhoea.
Taking this medication with food can reduce the incidence of gastrointestinal side effects.
Use in Driving and Operating Machinery
Cephalexin may cause dizziness. If you experience this, avoid driving or operating heavy machinery until you are sure you can perform these activities safely.
Use in Pregnancy and Lactation
Cephalexin is generally considered safe to use during pregnancy and breastfeeding. However, you should always consult your doctor before taking any medication during pregnancy or while breastfeeding.
Caution in Other Conditions
Patients with kidney disease should be cautious while taking Cephalexin, as the dosage may need to be adjusted.
Individuals with gastrointestinal diseases, particularly colitis, should also exercise caution when taking Cephalexin.
Special Dietary and Lifestyle Recommendations
Maintain a healthy, balanced diet to support your immune system while taking antibiotics.
Stay well-hydrated by drinking plenty of water throughout the day.
Get enough rest to allow your body to recover from the infection.
Frequently asked questions
Does Cephalexin affect mood?
Cephalexin is not associated with effects on mood. It is an antibiotic used to treat bacterial infections and does not typically impact mood or mental health.
Are there any natural alternatives to Cephalexin?
There are no known natural alternatives that have the same effect as Cephalexin. It is crucial to take antibiotics as prescribed by your doctor to manage bacterial infections effectively.
Can Cephalexin cause allergies?
Yes, like any other medicine, some people might be allergic to Cephalexin. If you experience symptoms such as rash, itching, swelling, severe dizziness, or trouble breathing, contact your doctor immediately.
Does Cephalexin affect menstruation?
Cephalexin does not typically affect the menstrual cycle. However, if you notice any changes in your cycle or experience heavier bleeding while taking this medicine, consult your doctor.
Can I become addicted to Cephalexin?
No, Cephalexin is an antibiotic and does not have addictive properties. It should be used only for the duration prescribed by your doctor.
How long does it take for Cephalexin to work?
Cephalexin typically starts working within a few days of starting the course. However, you should continue taking it for the full prescribed duration even if you feel better.
Is it safe to take Cephalexin daily?
Yes, it's safe to take Cephalexin daily as long as it is prescribed by a doctor and taken for the recommended duration.
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