2 doctors weighed in:

How long after doxycycline be in sun?

2 doctors weighed in
Dr. Michael Ein
Internal Medicine - Infectious Disease
1 doctor agrees

In brief: 5 days

The half life (time to elimination of half the drug) of Doxycycline is long, 15-24 hours.
The drug is not completely eliminated until 5 half lives after taking the last dose. I would wait 5 days after the last dose of Doxycycline until going in the sun and them use sun screen.

In brief: 5 days

The half life (time to elimination of half the drug) of Doxycycline is long, 15-24 hours.
The drug is not completely eliminated until 5 half lives after taking the last dose. I would wait 5 days after the last dose of Doxycycline until going in the sun and them use sun screen.
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