Doxycycline Hyclate is available under the brand names of “Acticlate”, “Monodox”, and “Vibra-Tabs”. This pharmaceutical medicine belongs to the drug class of tetracycline antibiotics. It is indicated for the treatment of rickettsia infections, sexually transmitted diseases, respiratory tract infections, specific bacterial infections, ophthalmic infections, and Anthrax including Inhalation anthrax. It can be administered through the oral route in the form of capsules and tablets and via the intravenous route in the form of injections and infusions. The dosage is determined by the medical condition and treatment response of the patient. The pediatric dose may also be determined by weight. Preferably, you should take your medication every day at the same time. Continue to take this medication until the full prescribed amount has been consumed, even if your symptoms have subsided after a couple of days. Infections can recur if the medication is stopped too soon. Related side effects include weight loss, nausea, vomiting, diarrhea, rash, skin sensitivity to sunlight, hives, and anemia. This pharmaceutical medicine is contraindicated in patients having a history of yeast infection, recent colitis caused by antibiotic consumption, history of lupus, porphyria, and myasthenia gravis. It is considered safe during the first trimester of pregnancy but is not prescribed during the second and third trimester. Its use is contraindicated during lactation as it is deposited on the bones and can cause harm to the infant. It was approved by FDA on June 5, 2005, under the brand name “Doryx”, which are delayed-release tablets.