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Conditions Doryx Can Treat and How It Works

Malaria Prevention

Malaria is an infection that is transmitted to humans by mosquitoes. If contracted, malaria can be a very serious illness and is often difficult to treat. Because malaria presents a number of problems, it is much easier to prevent the infection from occurring rather than treating an active infection. Doryx is usually used in areas where resistance to other antibiotics has developed.


Doryx may be helpful for people with severe acne. It is thought to help control acne by curbing the growth of bacteria and reducing inflammation. Doryx is usually better tolerated (usually with a lower risk of dangerous side effects) compared to minocycline (Minocin®), a similar antibiotic sometimes prescribed for acne treatment.

Anthrax Infections

This medication can be used to treat anthrax infections caused by the bacteria Bacillus anthracis, including both cutaneous anthrax and gastrointestinal anthrax. It is also used to prevent anthrax in individuals who have been exposed to inhalational anthrax.

How Does It Work?

Doryx belongs to a class of drugs called tetracyclines. It decreases bacteria's ability to make protein, which bacteria need to live. This activity does not directly kill the bacteria, but it does inhibit their growth and multiplication, which gives the immune system a chance to fight the infection.
Doryx tablets are unique in that they contain "enteric coated" pellets of doxycycline. This coating prevents the medication from dissolving in the stomach, where it might cause stomach upset. Instead, the medication dissolves in the small intestine, where it is rapidly absorbed into the bloodstream.

Doryx Medication Information

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