Doxycyclinedrug info

doxycycline hyclate 100 MG Delayed Release Oral Tablet

What it is used for

Doxycycline hyclate delayed-release tablets are a tetracycline-class drug indicated for:

Rickettsial infections

Sexually transmitted infections

Respiratory tract infections

Specific bacterial infections

Ophthalmic infections

Anthrax, including inhalational anthrax (post-exposure)

Alternative treatment for selected infections when penicillin is contraindicated

Adjunctive therapy in acute intestinal amebiasis and severe acne

Prophylaxis of malaria Usage To reduce the development of drug-resistant bacteria and maintain the effectiveness of doxycycline hyclate and other antibacterial drugs, doxycycline hyclate delayed-release tablets should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.

1.1 Rickettsial

Infections Doxycycline hyclate delayed-release tablet is indicated for treatment of Rocky Mountain spotted fever, typhus fever and the typhus group, Q fever, rickettsialpox, and tick fevers caused by Rickettsiae.

1.2 Sexually

Transmitted Infections Doxycycline hyclate delayed-release tablet is indicated for treatment of the following sexually transmitted infections:

Uncomplicated urethral, endocervical or rectal infections caused by Chlamydia trachomatis.

Nongonococcal urethritis caused by Ureaplasma urealyticum.

Lymphogranuloma venereum caused by Chlamydia trachomatis.

Granuloma inguinale caused by Klebsiella granulomatis.

Uncomplicated gonorrhea caused by Neisseria gonorrhoeae.

Chancroid caused by Haemophilus ducreyi.

1.3 Respiratory

Tract Infections Doxycycline hyclate delayed-release tablet is indicated for treatment of the following respiratory infections:

Respiratory tract infections caused by Mycoplasma pneumoniae.

Psittacosis (ornithosis) caused by Chlamydophila psittaci.

Because many strains of the following groups of microorganisms have been shown to be resistant to doxycycline, culture and susceptibility testing are recommended.

Doxycycline is indicated for treatment of infections caused by the following micro-organisms, when bacteriological testing indicates appropriate susceptibility to the drug: - Respiratory tract infections caused by Haemophilus influenzae. - Respiratory tract infections caused by Klebsiella species. - Upper respiratory infections caused by Streptococcus pneumonia.

1.4 Specific

Bacterial Infections Doxycycline hyclate delayed-release tablet is indicated for treatment of the following specific bacterial infections:

Relapsing fever due to Borrelia recurrentis.

Plague due to Yersinia pestis.

Tularemia due to Francisella tularensis.

Cholera caused by Vibrio cholerae.

Campylobacter fetus infections caused by Campylobacter fetus.

Brucellosis due to Brucella species (in conjunction with streptomycin).

Bartonellosis due to Bartonella bacilliformis. Because many strains of the following groups of microorganisms have been shown to be resistant to doxycycline, culture and susceptibility testing are recommended. Doxycycline is indicated for treatment of infections caused by the following gram- negative microorganisms, when bacteriological testing indicates appropriate susceptibility to the drug:

Escherichia coli

Enterobacter aerogenes

Shigella species

Acinetobacter species

Urinary tract infections caused by Klebsiella species.

1.5 Ophthalmic

Infections Doxycycline hyclate delayed-release tablet is indicated for treatment of the following ophthalmic infections:

Trachoma caused by Chlamydia trachomatis, although the infectious agent is not always eliminated as judged by immunofluorescence.

Inclusion conjunctivitis caused by Chlamydia trachomatis.

1.6 Anthrax

Including Inhalational Anthrax (Post-Exposure) Doxycycline hyclate delayed-release tablet is indicated for the treatment of Anthrax due to Bacillus anthracis, including inhalational anthrax (post-exposure): to reduce the incidence or progression of disease following exposure to aerosolized Bacillus anthracis.

1.7 Alternative

Treatment for Selected Infections when Penicillin is Contraindicated Doxycycline hyclate delayed-release tablet is indicated as an alternative treatment for the following selected infections when penicillin is contraindicated:

Syphilis caused by Treponema pallidum.

Yaws caused by Treponema pallidum subspecies pertenue.

Vincent’s infection caused by Fusobacterium fusiforme.

Actinomycosis caused by Actinomyces israelii.

Infections caused by Clostridium species.

1.8 Adjunctive

Therapy for Acute Intestinal Amebiasis and Severe Acne In acute intestinal amebiasis, doxycycline hyclate delayed-release tablet may be a useful adjunct to amebicides. In severe acne, doxycycline may be useful adjunctive therapy.

1.9 Prophylaxis of

Malaria Doxycycline hyclate delayed-release tablet is indicated for the prophylaxis of malaria due to Plasmodium falciparum in short-term travelers (less than 4 months) to areas with chloroquine and/or pyrimethamine-sulfadoxine resistant strains. 1.10 Usage To reduce the development of drug-resistant bacteria and maintain the effectiveness of doxycycline hyclate delayed-release tablet and other antibacterial drugs, doxycycline hyclate delayed-release tablet should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.

Text above is quoted in full from the FDA-approved drug label published by openFDA, effective April 28, 2026. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.

Description

Doxycycline hyclate delayed-release tablets, USP contain specially coated pellets of doxycycline hyclate, USP, a tetracycline class drug synthetically derived from oxytetracycline, in a delayed-release formulation for oral administration. The structural formula for doxycycline hyclate, USP is: with a molecular formula of C 22 H 24 N 2 O 8, HCl, ½ C 2 H 6 O, ½ H 2 O and a molecular weight of 512.9. The chemical name for doxycycline hyclate is [4S(4aR,5S,5aR,6R,12aS)] -4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-deoxonaphthacene-2- carboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate. Doxycycline hyclate, USP is a yellow to light yellow powder, freely soluble in water and in methanol; sparingly soluble in alcohol; practically insoluble in chloroform and in ether. It dissolves in aqueous solutions of alkali hydroxides and carbonates. Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. Each tablet contains doxycycline 75 mg, 100 mg, 150 mg and 200 mg (equivalent to doxycycline hyclate 86.55 mg, 115.41 mg, 173.11 mg and 230.82). Inactive ingredients in the tablet formulation are: colloidal silicon dioxide, corn starch, croscarmellose sodium, crospovidone, hypromellose, hypromellose phthalate, lactose anhydrous, lactose monohydrate, low substituted hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, polyethylene glycol 6000, povidone (K-30), sodium chloride, talc and triethyl citrate. Each doxycycline hyclate delayed-release tablets 75 mg contains 4.7 mg (0.204 mEq) of sodium, each doxycycline hyclate delayed-release tablets 100 mg contains 6.3 mg (0.274 mEq) of sodium, each doxycycline hyclate delayed-release tablets 150 mg contains 9.4 mg (0.409 mEq) of sodium and each doxycycline hyclate delayed-release tablets 200 mg contains 12.6 mg (0.548 mEq) of sodium. This drug product meets USP Dissolution Test 5. structure

Text above is quoted in full from the FDA-approved drug label published by openFDA, effective April 28, 2026. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.

This page reproduces regulatory text for reference. It is not medical advice, and KenyRx is not a pharmacy or a prescriber. Talk to a doctor or pharmacist about whether a medicine is right for you.

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