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Doxycycline Prescription

Doxycycline is a broad-spectrum tetracycline antibiotic prescribed against a wide variety of bacterial infections, including:
- Urinary tract infections;
- Trachoma;
- Some gonococcal infections in adults;
- Rocky Mountain spotted fever and other fevers caused by ticks fleas and lice;

It is an approved treatment for inhalational anthrax. Doxycycline is also prescribed with other drugs to treat severe acne and amoebic dysentery.

Doxycycline may also be taken for the prevention of malaria on foreign trips of less than 4 months' duration.

Occasionally doctors prescribe doxycycline to treat early Lyme disease and to prevent "traveler's diarrhea." These are not yet officially approved uses for Doxycycline hyclate.


Doxycycline contains the active ingredient doxycycline, which belongs to a group of antibiotics called the tetracyclines. It is an antibiotic that has the ability to inhibit the growth of a wide variety of bacteria and certain other organisms. It works by preventing bacteria from producing proteins that are essential to them. Without these proteins the bacteria cannot grow, replicate and increase in numbers. Doxycycline therefore stops the spread of the infection and the remaining bacteria eventually die.

Doxycycline is prescribed to treat a wide variety of respiratory, urinary tract, eye and sexually transmitted infections, and various other infections caused by susceptible bacteria and micro-organisms.

Doxycycline is also prescribed for severe acne, as it is active against the bacteria associated with acne, Propionebacterium acnes. This is a common type of bacteria that feeds on sebum produced by the sebaceous glands in the skin. It produces waste products and fatty acids that irritate the sebaceous glands, making them inflamed and causing spots. By controlling bacterial numbers, doxycycline brings the inflammation of the sebaceous glands under control, and the skin is allowed to heal.

Doxycycline is also active against the parasite that causes malaria. It is sometimes prescribed to treat malaria, and can also be prescribed to prevent it when visiting high-risk malarial areas, in particular areas where the malaria parasite is resistant to chloroquine.

Why is Doxycycline prescribed?

- treatment of malaria caused by chloroquine-resistant plasmodium falciparum;
- tetanus;
- syphilis;
- sexually transmitted infection that causes genital ulcers;
- protozoal infection of the intestine;
- prevention of traveller's diarrhoea;
- prevention of malaria;
- prevention of infection with leptospira bacteria;
- prevention of an infectious disease called scrub typhus;
- pneumonia;
- louse and tick-bourne relapsing fever;
- lesions in the groin and genitalia caused by a sexually transmitted bacteria;
- inflammation of the sinuses due to infection;
- infectious disease of rodents that can be transmitted to humans;
- infectious disease of parrots and man;
- infections of the urinary tract;
- infections caused by rickettsiae micro-organisms transmitted by lice fleas ticks and mites;
- infection of the lungs and airways;
- infection caused by brucella bacteria;
- gonorrhoea;
- eye infections;
- disease of rodents and rabbits that can be transmitted to humans;
- disease caused by infection with leptospira bacteria;
- death and decay of tissue in a infected wound due to gas production by the infecting bacteria;
- chronic bronchitis;
- cholera;
- chlamydia;
- bubonic plague;
- acne vulgaris;

Doxycycline Side Effects

- vomiting;
- skin sensitivity to light;
- severe allergic reaction;
- rectal or genital itching;
- rash;
- nausea;
- loss of appetite;
- inflammation of the tongue;
- discolored teeth in infants and children;
- difficulty swallowing;
- diarrhea;
- bulging foreheads in infants;
- rash;
- nausea and vomiting;
- mild increase in pressure within the skull;
- loss of appetite;
- inflammation of the intestines;
- inflammation of the food pipe;
- hypersensitivity reactions such as swelling of the lips throat and tongue itchy blistering rash or anaphylactic shock;
- disturbances of liver function;
- difficulty or pain when swallowing;
- diarrhoea;
- blood disorders;
- abnormal reaction of the skin to light usually a rash;
- angioedema;

Doxycycline Dosage

ADULTS

The usual dose of oral doxycycline is 200 mg on the first day of treatment followed by a maintenance dose of 100 mg per day. The maintenance dose may be taken as a single dose or as 50 mg every 12 hours.

Your doctor may prescribe 100 mg every 12 hours for severe infections such as chronic urinary tract infection.

For Uncomplicated Gonorrhea

The usual dose is 100 mg by mouth, twice a day for 7 days. An alternate, single-day treatment is 300 mg, followed in 1 hour by a second 300-mg dose.

For Primary and Secondary Syphilis

The usual dose is 200 mg a day, divided into smaller, equal doses for 14 days.

For Inhalational Anthrax

To prevent or combat infection after exposure, the usual dose is 100 mg taken by mouth twice a day for 60 days. Treatment can be started intravenously, but should be switched to oral doses as soon as possible.

For Prevention of Malaria

The usual dose is 100 mg a day. Treatment should begin 1 to 2 days before travel to the area where malaria is found, then continue daily during travel in the area and 4 weeks after leaving.

CHILDREN

For children above 8 years of age, the recommended dosage schedule for those weighing 100 pounds or less is 2 mg per pound of body weight, divided into 2 doses, on the first day of treatment, followed by 1 mg per pound of body weight given as a single daily dose or divided into 2 doses on subsequent days.

For more severe infections, up to 2 mg per pound of body weight may be used.

For inhalational anthrax in children weighing less than 100 pounds, the usual dose is 1 mg per pound of body weight twice daily for 60 days.

For prevention of malaria, the recommended dose is 2 mg per 2.2 pounds of body weight up to 100 mg.

For children over 100 pounds, the usual adult dose should be used.