Get your Health question answered in 3 easy steps
A Doctor will be with you shortly
Ask a Doctor Now
158 Doctors are Online

Is Amoxicillin a stronger antibiotic than Cephalexin?

User rating for this question
Very Good
Answered by

General & Family Physician
Practicing since : 2001
Answered : 14838 Questions
Which antibiotic is stronger Amoxicillin or Cephalexin?
Posted Tue, 27 Aug 2013 in Medicines and Side Effects
Answered by Dr. Michelle Gibson James 1 hour later
HI, thanks for using healthcare magic

There are different types of bacteria. They are classified according to if they react to certain stains or chemicals, their structure and whether they require oxygen for growth.

Antibiotics are also classified mainly according to their structure. Antibiotics with similar structure would act in a similar way.
They can also be classified according to spectrum of activity (whether they are effective against alot or few bacteria), how they are given and type of activity (whether they kill or simply immobilise the bacteria).

Amoxicillin is a penicillin. These are the oldest antibiotics, they have a structure that is similar to cephalosporins for example cephalexin.

Cephalosporins have different generations , 1st, 2nd and 3 rd. As we move from 1st generation to 3 rd generation the spectrum increases. This means that the 3rd generation antibiotics can act on or kill more bacteria than the 1st generation.

Cephalexin is a first generation cephalosporin.

There is less likely to be bacterial resistance against cephalexin compared to amoxicillin . This means that they would be more effective against the bacteria.

I hope this helps,feel free to ask any other questions
Above answer was peer-reviewed by
Share on Facebook
Share on Twitter
Share on Google+
Question is related to

The user accepted the expert's answer

Ask an Internal Med Specialist

© Ebix, Inc. All Rights Reserved.
All the information, content and live chat provided on the site is intended to be for informational purposes only, and not a substitute for professional or medical advice. You should always speak with your doctor before you follow anything that you read on this website. Any health question asked on this site will be visible to the people who browse this site. Hence, the user assumes the responsibility not to divulge any personally identifiable information in the question. Use of this site is subject to our Terms & Conditions
Already Rated.
Your rating:

Ask a Doctor