Doxycycline has a broad spectrum of antimicrobial action.It is recommended to buy doxycycline hyclate 100mg both for adults and children above 8 years old. The medicine has a powerful bacteriostatic action. There is no necessity to buy the medicine with doctor prescription, more and more often people prefer to buy doxycycline without prescription, however, it would be good for you to consult a doctor or carefully read the instruction to the drug before you buy doryx online. Doxycycline depresses intestinal flora  to a lesser extent than other tetracyclic antibiotics, has longer action and is better absorbed. The rate of antibacterial activity of Doxycycline exceeds natural tetracyclines. Unlike tetracycline it has a better therapeutic effectiveness which manifests even with application of as 10 times smaller doses. Most doctors recommend to buy doxycycline 100 mg since it is considered the most optimal dose. The recommended dose for treating severe diseases is 200 mg of Doxycycline a day during the whole period of treatment. The capsules should be taken whole with a glass of water. The medicine is better absorbed when taken on an empty stomach.