Doxycycline Hyclate Delayed-Release Tablets USP - 150 mg

  • Doxycycline Hyclate is bioequivalent (similar) to the brand Doryx DR Tablets, another product used to treat acne, they both contain doxycycline, in an enteric coated pelletized formulation.  This is important because it minimizes the side effects that can occur while taking this medication.
  • Doxycycline Hyclate is an oral antibiotic that fights from the inside out against the bacteria that causes acne (p acnes).
  • Doxycycline Hyclate tablets are delayed release with a protective coating; they release slowly over time into the bloodstream and the coating helps protect the stomach from getting upset because it is mostly digested in the small intestine.

Next Steps

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Important Information


In severe acne, doxycycline may be useful adjunctive therapy.

Doxycycline is indicated for the treatment of the following infections: Rocky mountain spotted fever, typhus fever and the typhus group, Q fever, rickettsialpox, and tick fevers caused by Rickettsiae; Respiratory tract infections caused by Mycoplasma pneumonia; Lymphogranuloma venereum caused by Chlamydia trachomatis; Psittacosis (ornithosis) caused by Chlamydophila psittaci; Trachoma caused by Chlamydia trachomatis, although the infectious agent is not always eliminated as judged by immunofluorescence; Inclusion conjunctivitis caused by Chlamydia trachomatis; Uncomplicated urethral, endocervical or rectal infections in adults caused by Chlamydia trachomatis; Nongonococcal urethritis caused by Ureaplasma urealyticum; Relapsing fever due to Borrelia recurrentis.

Doxycycline is also indicated for the treatment of infections caused by the following gram-negative microorganisms: Chancroid caused by Haemophilus ducreyi; Plague due to Yersinia pestis; Tularemia due to Francisella tularensis, Cholera caused by Vibrio cholera, Campylobacter fetus infections caused by Campylobacter fetus, Brucellosis due to Brucella species (in conjunction with streptomycin), Bartonellosis due to Bartonella bacilliformis, Granuloma inguinale caused by Calymmatobacterium granulomatis.

Doxycycline is also indicated for treatment of infections caused by the following gram-negative microorganisms, when bacteriologic testing indicates appropriate susceptibility to the drug: Escherichia coli, Enterobacter aerogenes, Shigella species, Acinetobacter species, Respiratory tract infections caused by Haemophilus influenza, Respiratory tract and urinary tract infections caused by Klebsiella species.

Doxycycline is indicated for treatment of infections caused by the following gram-positive microorganisms when bacteriologic testing indicates appropriate susceptibility to the drug: Upper respiratory infections caused by Streptococcus pneumonia,

Anthrax due to Bacillus anthracis, including inhalational anthrax (post-exposure): to reduce the incidence or progression of disease following exposure to aerosolized Bacillus anthracis.

When penicillin is contraindicated, doxycycline is an alternative drug in the treatment of the following infections: Uncomplicated gonorrhea caused by Neisseria gonorrhoeae,

Syphilis caused by Treponema pallidum, Yaws caused by Treponema pertenue, Listeriosis due to Listeria monocytogenes, Vincent’s infection caused by Fusobacterium fusiforme, Actinomycosis caused by Actinomyces israelii, Infections caused by Clostridium species.

In acute intestinal amebiasis, doxycycline may be a useful adjunct to amebicides.

Important Safety Information

  • Do not take Doxycycline hyclate delayed-release tablets if you are allergic to tetracyclines. Like other tetracyclines, doxycycline can harm an unborn child when taken by a pregnant woman. Talk to your doctor if you are pregnant or are breastfeeding. Doxycycline hyclate delayed-release tablets should not be used when a child’s teeth are forming (during the last half of pregnancy and up to the age of 8 years) because it may cause permanent darkening of teeth. Oral contraceptives may not work as well when you are taking Doxycycline hyclate delayed-release tablets.
  • Diarrhea may occur with the use of antibacterial drugs and may range from mild to severe. If you develop watery and bloody stools (with or without stomach cramps or fever) even as late as two or more months after having taken the last dose of Doxycycline hyclate delayed-release tablets, please call your doctor as soon as possible.
  • Sensitivity to natural or artificial sunlight can occur with tetracycline-class drugs. Avoid excessive sunlight and consider using sunscreen or sunblock. Stop taking Doxycycline hyclate delayed-release tablets and call your doctor if you develop a severe sunburn.
  • Increased pressure in the skull has been reported with the use of tetracycline drugs like Doxycycline hyclate delayed-release tablets. Contact your doctor if you experience headaches, blurred vision, double-vision or vision loss. Overweight women of child-bearing age or those who have ever been diagnosed with Intracranial Hypertension (also known as IH or Pseudotumor Cerebri) are at greater risk for developing this side effect.
  • The most common side effects seen in patients taking tetracyclines include anorexia, nausea, vomiting, diarrhea, rash, sensitivity to sunlight, hives, and low red blood cell count (anemia).


For additional safety and other information, including Patient Information, please see Full Prescribing Information. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit, or call 1-800-FDA-1088.