23 Aug 2009
The eilimination half life of doxycycline is between 16 to 22 hours (for healthy adults).
It takes 5.5 x elimination half life (hours) before a drug is completely cleared from your system.
So if we take the maximum elimination half life of 22 hours, it would take 121 hours i.e. approximately 5 days (5.5 x 22 hours) before the medicine is eliminated from your system.
- Doxycycline Information for Consumers
- Doxycycline Information for Healthcare Professionals (includes dosage details)
- Side Effects of Doxycycline (detailed)
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
I have been using doxycycline hyclate for acne and was wondering how long does it stay within my system once I stop taking it? I need to know so that ...
1 answer • 30 Sep 2011
1 answer • 25 Dec 2013
My husband has just been prescribed Doxycycline and I am worried about being near him as I am highly allergic to Penicillin and get blisters on my ...
2 answers • 14 Apr 2014
How long should I take dermatologist-prescribed doxycycline hyclate 100 mg for possible Lyme Diseas?
My dermatologist removed a tick I had for approx. 2 weeks and prescribed 40 tablets of doxycycline taken twice a day. I am going out of the country. ...
1 answer • 25 Jul 2014
No matter amount of time on it or what it was prescribed for and if you are not better from taking it, so system still highly compromised? As I am ...
1 answer • 28 Oct 2015