HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

question-icon

At What Minimum Interval Can Keflex Be Taken For Chest Infection?

default
Posted on Mon, 25 Aug 2014
Question: I am takingKeflex 500 mg every 6 hours for 7 days for a chest infection.
I woke up late today and took it two hours later than I was supposed to (instead of 10am took at noon)
Do I go back to the original schedule I was on which would have meant I would take 6 hours from 10am which would be 4pm, even though I took at 12pm so would only be 4 hours since my last dose, or do i wait 6 hours from last time I took it now which would be 6pm (6 hours from 12pm)?
doctor
Answered by Dr. T Chandrakant (39 minutes later)
Brief Answer:
4 PM

Detailed Answer:
Hi.
Very good question.
You are taking Cefalexin 500 mg every 6 hours. This is a typical drug with a less half life so is the need to take this 6 hourly interval particularly in adults.

You are taking this medicine for the last 7 days for a chest infection- this means that the efficacy is almost completed and missing a single dose will not have any adverse effect as well as taking the next dose at 4 pm or 6 pm.

As I explained , the half life is short so you can very well take the dose at 4 pm and continue the rests at the pre-determined time.
Note: For more detailed guidance, please consult an Internal Medicine Specialist, with your latest reports. Click here..

Above answer was peer-reviewed by : Dr. Raju A.T
doctor
Answered by
Dr.
Dr. T Chandrakant

General Surgeon

Practicing since :1984

Answered : 19778 Questions

premium_optimized

The User accepted the expert's answer

Share on

Get personalised answers from verified doctor in minutes across 80+ specialties

159 Doctors Online

By proceeding, I accept the Terms and Conditions

HCM Blog Instant Access to Doctors
HCM Blog Questions Answered
HCM Blog Satisfaction
At What Minimum Interval Can Keflex Be Taken For Chest Infection?

Brief Answer: 4 PM Detailed Answer: Hi. Very good question. You are taking Cefalexin 500 mg every 6 hours. This is a typical drug with a less half life so is the need to take this 6 hourly interval particularly in adults. You are taking this medicine for the last 7 days for a chest infection- this means that the efficacy is almost completed and missing a single dose will not have any adverse effect as well as taking the next dose at 4 pm or 6 pm. As I explained , the half life is short so you can very well take the dose at 4 pm and continue the rests at the pre-determined time.