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Doryx is a prescription medication used for treating and preventing various types of infections. It is commonly used to treat and prevent anthrax infections, prevent malaria, and treat acne. The drug works to limit the growth and multiplication of bacteria by inhibiting the bacteria's ability to make protein. This antibiotic comes in tablet form and is usually taken once a day.

What Is Doryx?

Doryx® (doxycycline hyclate delayed release) is a prescription antibiotic approved to treat and prevent a number of different conditions. Notably, some of the approved uses of Doryx include treating and preventing anthrax, preventing malaria, and treating acne.
(Click Doryx Uses for more information, including information about possible off-label uses.)

Who Makes Doryx?

Currently, this medication is made by Mayne Pharma International Pty Ltd for Warner Chilcott (US), LLC.

How Does Doryx 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.
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Last reviewed by: Kristi Monson, PharmD;
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