Not having taken the Doxycycline, I can't guarantee that it's good, but everything appears to be legit. Shipping has been ~3 weeks, and Credit Card billing has worked with no problems.
There's a $50 minimum, so maybe pick up some Amoxycillin too. That's safer for kids and pregnant women. No good for anthrax, but better for ear/nose/throat infections, and you never know what you'll need.