Doxycycline Hyclate 150 mg Tablet, Delayed Release, 30-count
Other active recalls for Doxycycline Hyclate (different manufacturers) — 1 · tap to view
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Tetracycline-class Drug class.
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🏭 Manufacturer & labeler
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🩺 Clinical
- Doxycycline is quite versatile. It treats a wide range of bacterial infections — respiratory infections, STIs like chlamydia and gonorrhea, tick-borne illnesses like Rocky Mountain...
- What kinds of infections does doxycycline actually treat?
- It depends on the tablet strength your doctor prescribed. In general, if doxycycline bothers your stomach, taking it with food or milk can help — and for the 200 mg tablet specific...
- Should I take doxycycline with food or on an empty stomach?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Doxycycline Hyclate — tap one for details:
Doxycycline Hyclate may be associated with lower levels of 7 nutrients — worth a chat with your pharmacist, not a cause for alarm.
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Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII OP1R32D61U
Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
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UNII 2S7830E561
Crospovidone is a synthetic polymer derived from povidone. It acts as a disintegrant, helping the tablet or capsule break apart quickly in the stomach so the active ingredient can be absorbed.
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UNII 8LDD2V82F5
A plant-derived polymer that forms a protective coating around tablets or capsules. It delays release of the medication until it reaches the small intestine, protecting sensitive ingredients and improving how the body absorbs them.
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UNII 3NXW29V3WO
Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
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UNII EWQ57Q8I5X
Lactose monohydrate is a natural sugar derived from milk. It serves as a filler and binder in tablets and capsules, helping create the proper size, texture, and consistency of the medicine.
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UNII 70097M6I30
Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
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UNII 3OWL53L36A
A natural sugar alcohol derived from seaweed or synthesized in the lab. It's used as a filler to add bulk, a sweetener in sugar-free formulas, and a disintegrant to help tablets break apart in the stomach.
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UNII FZ989GH94E
Povidone is a synthetic polymer made from a plastic-like material. It acts as a binder to hold tablet ingredients together and as a disintegrant to help the tablet break apart in your stomach so the medicine can be absorbed.
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UNII 451W47IQ8X
Sodium chloride is common table salt. It's used in medicines as a buffer to maintain proper pH, as a filler to add bulk, or to adjust the osmotic balance in liquid formulations.
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UNII 368GB5141J
A detergent and foaming agent derived from coconut or palm oil. In medications, it helps break down and mix oil and water-based ingredients, aids in tablet disintegration, and improves how the drug dissolves and spreads in the mouth or digestive system.
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UNII 7SEV7J4R1U
A powder made from a naturally occurring mineral. In medicines, talc works as a glidant and anti-caking agent, helping tablets and capsules flow smoothly during manufacturing and preventing clumping.
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UNII 8Z96QXD6UM
Triethyl citrate is a clear liquid derived from citric acid. It acts as a plasticizer and solvent in tablet coatings and film formulations, helping the coating remain flexible and adhere properly to the medicine.
12 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · Q2 2026 | $3.34 | $100.33 / 30 tablets |
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Doxycycline Hyclate Delayed Release 150 mg 23155-0143-01 | Heritage | 100 tablets | $1.131 | AB | FDA listed | — |
| Doxycycline Hyclate 150 mg 62332-0483-31 | Alembic | 100 tablets | $1.131 | AB | FDA listed | — |
| Doxycycline Hyclate 150 mgthis 69668-0515-30 | Sonoma | 30 tablets | — | AB | FDA listed | — |
| Doxycycline Hyclate 150 mg 46708-0483-31 | Alembic | 100 tablets | — | AB | FDA listed | — |
| Doxycycline Hyclate 150 mg 43547-0324-06 | Solco | 60 tablets | — | AB | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 69668-0515-30 You're viewing this | 30 TABLET, DELAYED RELEASE in 1 BOTTLE, PLASTIC (69668-515-30) | 2018-05-10 | Active |
🧭 About this NDC listing & data coverage
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | ✓ Available |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
Questions about this listing
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📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE To reduce the development of drug-resistant bacteria and maintain the effectiveness of doxycycline hyclate delayed-release tablets 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 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.
Doxycycline is a tetracycline-class antibacterial indicated in the following conditions or diseases: Doxycycline hyclate delayed-release tablets are a tetracycline-class drug indicated for: Rickettsial infections ( 1.1 ) Sexually transmitted infections ( 1.2 ) Respiratory tract infections ( 1.3 ) Specific bacterial infections ( 1.4 ) Ophthalmic infections ( 1.5 ) Anthrax, including inhalational anthrax (post-exposure) ( 1.6 ) Alternative treatment for selected infections when penicillin is contraindicated ( 1.7 ) Adjunctive therapy in acute intestinal amebiasis and severe acne ( 1.8 ) Prophylaxis of malaria ( 1.9 ) 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 )
1.1Rickettsial infections Rocky Mountain spotted fever, typhus fever and the typhus group, Q fever, rickettsialpox, and tick fevers caused by Rickettsiae .
1.2Sexually 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 .
1.3Respiratory tract 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 microorganisms, 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 pneumoniae .
1.4Specific 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.
1.5Ophthalmic infections Trachoma caused by Chlamydia trachomatis , although the infectious agent is not always eliminated as judged by immunofluorescence. Inclusion conjunctivitis caused by Chlamydia trachomatis .
1.6Anthrax, including inhalational anthrax (post-exposure) Anthrax due to Bacillus anthracis , including inhalational anthrax (post-exposure): t…
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Adults: doxycycline hyclate delayed-release tablets The usual dosage is 200 mg on the first day of treatment (administered 100 mg every 12 hours) followed by a maintenance dose of 100 mg daily. ( 2.1 ) In the management of more severe infections (particularly chronic infections of the urinary tract), 100 mg every 12 hours is recommended. ( 2.1 ) Pediatric Patients: doxycycline hyclate delayed-release tablets For all pediatric patients weighing less than 45 kg with severe or life-threatening infections (e.g., anthrax, Rocky Mountain spotted fever), the recommended dose is 2.2 mg per kg of body weight administered every 12 hours.
Pediatric patients weighing 45 kg or more should receive the adult dose. ( 2.3 ) For pediatric patients with less severe disease (greater than 8 years of age and weighing less than 45 kg), the recommended dose is 4.4 mg per kg of body weight divided into two doses on the first day of treatment, followed by a maintenance dose of 2.2 mg per kg of body weight (given as a single daily dose or divided into two doses. For pediatric patients weighing over 45 kg, the usual adult dose should be used.
( 2.1 )
2.1Usual Dosage and Administration The usual dosage and frequency of administration of doxycycline differs from that of the other tetracyclines. Exceeding the recommended dosage may result in an increased incidence of side effects. Adults: The usual dose of oral doxycycline is 200 mg on the first day of treatment (administered 100 mg every 12 hours), followed by a maintenance dose of 100 mg daily.
The maintenance dose may be administered as a single dose or as 50 mg every 12 hours. In the management of more severe infections (particularly chronic infections of the urinary tract), 100 mg every 12 hours is recommended. Pediatric patients: For all pediatric patients weighing less than 45 kg with severe or life threatening infections (e.g., anthrax, Rocky Mountain spotted fever), the recommended dosage of doxycycline is 2.2 mg per kg of body weight administered every 12 hours.
Pediatric patients weighing 45 kg or more should receive the adult dose [ see Warnings and Precautions ( 5.1 ) ]. For pediatric patients with less severe disease (greater than 8 years of age and weighing less than 45 kg), the recommended dosage schedule of doxycycline is 4.4 mg per kg of body weight divided into two doses on the first day of treatment, followed by a maintenance dose of 2.2 mg per kg of body weight (given as a single daily dose or divided into twice daily doses). For pediatric patients weighing over 45 kg, the usual adult dose should be used.
Administration of adequate amounts of fluid along with capsule and tablet forms of drugs in the tetracycline-class is recommended to wash down the drugs and reduce the risk of esophageal irritation and ulceration [ see Adverse Reactions ( 6.1 ) ]. If gastric irritation occurs, doxycycline may be given with food or milk [ see Clinical Pharmacology ( 12 ) ]. When used in streptococcal infections, therapy should be continued for 10 days.
Uncomplicated urethral, endocervical, or rectal infection caused by Chlamydia trachomatis : 100 mg by mouth twice a day for 7 days. As an alternate dosing regimen for uncomplicated urethral or endocervical infection caused by Chlamydia trachomatis , administer 200 mg by mouth once-a-day for 7 days. Uncomplicated gonococcal infections in adults (except anorectal infections in men): 100 mg, by mouth, twice-a-day for 7 days.
As an alternate single visit dose, administer 300 mg stat followed in one hour by a second 300 mg dose. Nongonococcal urethritis (NGU) caused by U. urealyticum : 100 mg by mouth twice-a-day for 7 days. Syphilis – early: Patients who are allergic to penicillin should be treated with doxycycline 100 mg by mouth twice-a-day for 2 weeks.
Syphilis of more than one year’s duration: Patients who are allergic to penicillin should be treated with doxycycline 100 mg by mouth twice-a-day for 4 weeks. Acute epididymo-orc…
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Doxycycline hyclate delayed-release tablets, USP, 150 mg are white, capsule shaped dual-scored tablets containing yellow pellets and debossed with “P | 0 | 1” on one face and plain on the other. Each tablet contains specially coated pellets of doxycycline hyclate equivalent to 150 mg of doxycycline. Doxycycline hyclate delayed-release tablets, USP, 200 mg are white, oval scored tablets containing yellow pellets and debossed with “P0 | 02” on one face and plain on the other.
Each tablet contains specially coated pellets of doxycycline hyclate equivalent to 200 mg of doxycycline. Tablets: 150 mg and 200 mg ( 3 )
⛔ Contraindications ▾
4 CONTRAINDICATIONS The drug is contraindicated in persons who have shown hypersensitivity to any of the tetracyclines. Doxycycline is contraindicated in persons who have shown hypersensitivity to any of the tetracyclines. ( 4 )
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS The use of drugs of the tetracycline-class during tooth development (last half of pregnancy, infancy and childhood to the age of 8 years) may cause permanent discoloration of the teeth (yellow-gray-brown). ( 2.2 , 5.1 ) Clostridium difficile-associated diarrhea (CDAD) has been reported: Evaluate patients if diarrhea occurs. ( 5.2 ) Photosensitivity manifested by an exaggerated sunburn reaction has been observed in some individuals taking tetracyclines.
Limit sun exposure. ( 5.3 ) Overgrowth of non-susceptible organisms, including fungi, may occur. If such infections occur, discontinue use and institute appropriate therapy.
( 5.4 )
5.1Tooth Development The use of drugs of the tetracycline-class during tooth development (last half of pregnancy, infancy and childhood to the age of 8 years) may cause permanent discoloration of the teeth (yellow-gray-brown). This adverse reaction is more common during long-term use of the drugs but it has been observed following repeated short-term courses. Enamel hypoplasia has also been reported.
Use doxycycline hyclate delayed-release tablets in pediatric patients 8 years of age or less only when the potential benefits are expected to outweigh the risks in severe or life-threatening conditions (e.g., anthrax, Rocky Mountain spotted fever), particularly when there are no alternative therapies.
5.2Clostridium difficile associated diarrhea Clostridium difficile associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including doxycycline hyclate delayed-release tablets, and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C. difficile . C. difficile produces toxins A and B which contribute to the development of CDAD.
Hypertoxin producing strains of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibacterial use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents.
If CDAD is suspected or confirmed, ongoing antibacterial use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibacterial treatment of C. difficile , and surgical evaluation should be instituted as clinically indicated.
5.3Photosensitivity Photosensitivity manifested by an exaggerated sunburn reaction has been observed in some individuals taking tetracyclines. Patients apt to be exposed to direct sunlight or ultraviolet light should be advised that this reaction can occur with tetracycline drugs, and treatment should be discontinued at the first evidence of skin erythema.
5.4Superinfection As with other antibacterial preparations, use of doxycycline hyclate delayed-release tablets may result in overgrowth of non-susceptible organisms, including fungi. If superinfection occurs, the antibacterial should be discontinued and appropriate therapy instituted.
5.5Intracranial Hypertension Intracranial hypertension (IH, pseudotumor cerebri) has been associated with the use of tetracycline including doxycycline hyclate delayed-release tablets. Clinical manifestations of IH include headache, blurred vision, diplopia, and vision loss; papilledema can be found on fundoscopy. Women of childbearing age who are overweight or have a history of IH are at greater risk for developing tetracycline associated IH.
Avoid concomitant use of isotretinoin and doxycycline hyclate delayed-release tablets because isotretinoin is also known to cause pseudotumor cerebri. IH typically resolves after discontinuation of treatment, the possibility for permanent visual loss exists. If visual disturbance occurs during treatment, prompt ophthalmologic evaluation i…
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS Adverse reactions observed in patients receiving tetracyclines include anorexia, nausea, vomiting, diarrhea, rash, photosensitivity, urticaria, and hemolytic anemia. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Solco Healthcare LLC at 1-866-257-2597 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .
6.1Clinical Trial Experience The safety and efficacy of doxycycline hyclate delayed-release tablets, 200 mg as a single daily dose was evaluated in a multicenter, randomized, double-blind, active-controlled study. Doxycycline hyclate delayed-release tablets, 200 mg were given orally once-a-day for 7 days and compared to doxycycline hyclate capsules 100 mg given orally twice daily for 7 days for the treatment of men and women with uncomplicated urogenital C. trachomatis infection. Adverse events in the Safety Population were reported by 99 (40.2%) subjects in the doxycycline hyclate delayed-release tablets, 200 mg treatment group and 132 (53.2%) subjects in the doxycycline hyclate capsules reference treatment group.
Most AEs were mild in intensity. The most commonly reported adverse events in both treatment groups were nausea, vomiting, diarrhea, and bacterial vaginitis, Table 1. Table 1: Adverse Reactions Reported in Greater than or Equal to 2% of Subjects Doxycycline hyclate delayed-release tablets, 200 mg N = 246 Preferred Term n (%) Subjects with any AE 99 (40.2) Nausea 33 (13.4) Vomiting 20 (8.1) Headache 5 (2.0) Diarrhea 8 (3.3) Abdominal Pain Upper 5 (2.0) Vaginitis Bacterial 8 (3.3) Vulvovaginal Mycotic Infection 5 (2.0)
6.2Postmarketing Experience The following adverse reactions have been identified during post-approval use of doxycycline. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate a causal relationship to drug exposure. Due to oral doxycycline’s virtually complete absorption, side effects to the lower bowel, particularly diarrhea, have been infrequent.
The following adverse reactions have been observed in patients receiving tetracyclines: Gastrointestinal : Anorexia, nausea, vomiting, diarrhea, glossitis, dysphagia, enterocolitis, and inflammatory lesions (with monilial overgrowth) in the anogenital region. Hepatotoxicity has been reported. These reactions have been caused by both the oral and parenteral administration of tetracyclines.
Esophagitis and esophageal ulcerations have been reported in patients receiving capsule and tablet forms of drugs in the tetracycline-class. Most of these patients took medications immediately before going to bed [ see Dosage and Administration ( 2.1 ) ]. Skin : Maculopapular and erythematous rashes, Stevens-Johnson syndrome, toxic epidermal necrolysis, exfoliative dermatitis, and erythema multiforme have been reported.
Photosensitivity is discussed above [ see Warnings and Precautions ( 5.3 ) ]. Renal : Rise in BUN has been reported and is apparently dose-related [ see Warnings and Precautions ( 5.7 ) ]. Hypersensitivity reactions : Urticaria, angioneurotic edema, anaphylaxis, anaphylactoid purpura, serum sickness, pericarditis, and exacerbation of systemic lupus erythematosus.
Blood : Hemolytic anemia, thrombocytopenia, neutropenia, and eosinophilia have been reported. Intracranial Hypertension : Intracranial hypertension (IH, pseudotumor cerebri) has been associated with the use of tetracycline [ see Warnings and Precautions ( 5.5 ) ] Thyroid Gland Changes : When given over prolonged periods, tetracyclines have been reported to produce brown-black microscopic discoloration of thyroid glands. No abnormalities of thyroid function are known to occur.
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Patients who are on anticoagulant therapy may require downward adjustment of their anticoagulant dosage ( 7.1 ) Avoid co-administration of tetracyclines with penicillin ( 7.2 ) Absorption of tetracyclines, including doxycycline hyclate delayed-release tablets, is impaired by antacids containing aluminum, calcium, or magnesium, bismuth subsalicylate and iron-containing preparations ( 7.3 ) Concurrent use of tetracyclines, including doxycycline hyclate delayed-release tablets, may render oral contraceptives less effective ( 7.4 ) Barbiturates, carbamazepine and phenytoin decrease the half-life of doxycycline ( 7.5 )
7.1Anticoagulant Drugs Because tetracyclines have been shown to depress plasma prothrombin activity, patients who are on anticoagulant therapy may require downward adjustment of their anticoagulant dosage.
7.2Penicillin Since bacteriostatic drugs may interfere with the bactericidal action of penicillin, it is advisable to avoid giving tetracyclines in conjunction with penicillin.
7.3Antacids and Iron Preparations Absorption of tetracyclines is impaired by antacids containing aluminum, calcium, or magnesium, bismuth subsalicylate, and iron-containing preparations.
7.4Oral Contraceptives Concurrent use of tetracycline may render oral contraceptives less effective.
7.5Barbiturates and Anti-epileptics Barbiturates, carbamazepine, and phenytoin decrease the half-life of doxycycline.
7.6Penthrane The concurrent use of tetracycline and Penthrane ® (methoxyflurane) has been reported to result in fatal renal toxicity.
7.7Drug/Laboratory Test Interactions False elevations of urinary catecholamines may occur due to interference with the fluorescence test.
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Tetracycline-class drugs can cause fetal harm when administered to a pregnant woman, but data for doxycycline are limited. ( 5.6 , 8.1 ) Tetracyclines are excreted in human milk; however, the extent of absorption of doxycycline in the breastfed infant is not known. Doxycycline use during nursing should be avoided if possible. ( 8.3 )
8.1Pregnancy Teratogenic Effects. Pregnancy Category D: There are no adequate and well-controlled studies on the use of doxycycline in pregnant women. The vast majority of reported experience with doxycycline during human pregnancy is short-term, first trimester exposure.
There are no human data available to assess the effects of long-term therapy of doxycycline in pregnant women such as that proposed for the treatment of anthrax exposure. An expert review of published data on experiences with doxycycline use during pregnancy by TERIS - the Teratogen Information System - concluded that therapeutic doses during pregnancy are unlikely to pose a substantial teratogenic risk (the quantity and quality of data were assessed as limited to fair), but the data are insufficient to state that there is no risk.
1 A case-control study (18,515 mothers of infants with congenital anomalies and 32,804 mothers of infants with no congenital anomalies) shows a weak but marginally statistically significant association with total malformations and use of doxycycline anytime during pregnancy. Sixty-three (0.19%) of the controls and 56 (0.30%) of the cases were treated with doxycycline. This association was not seen when the analysis was confined to maternal treatment during the period of organogenesis (that is, in the second and third months of gestation), with the exception of a marginal relationship with neural tube defect based on only two-exposed cases.
2 A small prospective study of 81 pregnancies describes 43 pregnant women treated for 10 days with doxycycline during early first trimester. All mothers reported their exposed infants were normal at 1 year of age. 3 Nonteratogenic effects: [ see Warnings and Precautions ( 5.1 , 5.6 ) ].
8.3Nursing Mothers Tetracyclines are excreted in human milk, however, the extent of absorption of tetracyclines including doxycycline, by the breastfed infant is not known. Short-term use by lactating women is not necessarily contraindicated. The effects of prolonged exposure to doxycycline in breast milk are unknown 4 .
Because of the potential for serious adverse reactions in nursing infants from doxycycline, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother [ see Warnings and Precautions ( 5.1 , 5.6 ) ].
8.4Pediatric Use Because of the effects of drugs of the tetracycline-class on tooth development and growth, use doxycycline hyclate delayed-release tablets in pediatric patients 8 years of age or less only when the potential benefits are expected to outweigh the risks in severe or life-threatening conditions (e.g., anthrax, Rocky Mountain spotted fever), particularly, when there are no alternative therapies doxycycline hyclate delayed-release tablets [ see Warnings and Precautions ( 5.1 , 5.6 ) and Dosage and Administration ( 2.1 , 2.3 ) ].
8.5Geriatric Use Clinical studies of doxycycline hyclate delayed-release tablets did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. Doxycycline hyclate delayed-release 150 mg tablets contain 9 mg (0.392 mEq) of sodium.
Doxycycline hyclate delayed-release 200 mg tablets contain 12 mg (0.522 mEq) of sodium.
🆘 Overdosage ▾
10 OVERDOSAGE In case of overdosage, discontinue medication, treat symptomatically and institute supportive measures. Dialysis does not alter serum half-life and thus would not be of benefit in treating cases of overdosage.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Doxycycline is an antibacterial drug [ see Microbiology ( 12.4 ) ].
12.3Pharmacokinetics Doxycycline is virtually completely absorbed after oral administration. Following single and multiple-dose administration of doxycycline hyclate delayed-release tablets, 200 mg to adult volunteers, average peak plasma doxycycline concentration (C max ) was 4.6 mcg/mL and 6.3 mcg/mL, respectively with median t max of 3 hours; the corresponding mean plasma concentration values 24 hours after single and multiple doses were 1.5 mcg/mL and 2.3 mcg/mL, respectively. The mean C max and AUC 0-∞ of doxycycline are 24% and 13% lower, respectively, following single dose administration of doxycycline hyclate delayed-release tablets, 100 mg with a high fat meal (including milk) compared to fasted conditions.
The mean C max of doxycycline is 19% lower and the AUC 0-∞ is unchanged following single dose administration of doxycycline hyclate delayed-release tablets, 150 mg with a high fat meal (including milk) compared to fasted conditions. The clinical significance of these decreases is unknown. Doxycycline bioavailability from doxycycline hyclate delayed-release tablets, 200 mg was not affected by food, but the incidence of nausea was higher in fasted subjects.
The 200 mg tablets may be administered without regard to meals. When doxycycline hyclate delayed-release tablets are sprinkled over applesauce and taken with or without water, the extent of doxycycline absorption is unchanged, but the rate of absorption is increased slightly. Tetracyclines are concentrated in bile by the liver and excreted in the urine and feces at high concentrations and in a biologically active form.
Excretion of doxycycline by the kidney is about 40%/72 hours in individuals with a creatinine clearance of about 75 mL/min. This percentage may fall as low as 1-5%/72 hours in individuals with a creatinine clearance below 10 mL/min. Studies have shown no significant difference in the serum half-life of doxycycline (range 18 to 22 hours) in individuals with normal and severely impaired renal function.
Hemodialysis does not alter the serum half-life.
12.4Microbiology Mechanism of Action Doxycycline inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit. Doxycycline has bacteriostatic activity against a broad range of Gram-positive and Gram-negative bacteria. Cross-resistance between tetracyclines is common.
Doxycycline has been shown to be active against most isolates of the following microorganisms, both in vitro and in clinical infections as described in the INDICATIONS AND USAGE section of the package insert for doxycycline hyclate delayed-release tablets [ see Indications and Usage ( 1 ) ]. Gram-Negative Bacteria Acinetobacter species Bartonella bacilliformis Brucella species Campylobacter fetus Enterobacter aerogenes Escherichia coli Francisella tularensis Haemophilus ducreyi Haemophilus influenzae Klebsiella granulomatis Klebsiella species Neisseria gonorrhoeae Shigella species Vibrio cholerae Yersinia pestis Gram-Positive Bacteria Bacillus anthracis Streptococcus pneumoniae Anerobic Bacteria Clostridium species Fusobacterium fusiforme Propionibacterium acnes Other Bacteria Borrelia recurrentis Chlamydophila psittaci Chlamydia trachomatis Mycoplasma pneumoniae Norcardiae and other aerobic Actinomyces species Rickettsiae Treponema pallidum Treponema pallidum subspecies pertenue Ureaplasma urealyticum Parasites Balantidium coli Entamoeba species Plasmodium falciparum* * Doxycycline has been found to be active against the asexual erythrocytic forms of Plasmodium falciparum but not against the gametocytes of P. falciparum.
The precise mechanism of action of the drug is not known. Susceptibility Test Methods When available, the clinical microbiology laboratory should provide the results of in vitro susceptibility test results for antimicrobial drugs used in resident hospitals to the physician as periodic report…
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Doxycycline hyclate delayed-release tablets, USP, 150 mg are white, capsule shaped dual-scored tablets containing yellow pellets and debossed with “P | 0 | 1” on one face and plain on the other. Each tablet contains specially coated pellets of doxycycline hyclate equivalent to 150 mg of doxycycline. Bottles of 30 tablets: NDC 69668-515-30 Store at 20 - 25°C (68 - 77°F); excursions permitted to 15 - 30°C (59 - 86°F) [see USP Controlled Room Temperature].
Dispense in a tight, light-resistant container (USP).
📋 Description ▾
11 DESCRIPTION Doxycycline hyclate delayed-release tablets, for oral administration, contain specially coated pellets of doxycycline hyclate, USP, a broad-spectrum antibacterial synthetically derived from oxytetracycline, in a delayed-release formulation for oral administration. The structural formula for doxycycline hyclate 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 designation 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-deoxonapthtacene-2-carboxamide monohydrochloride, compound with ethyl alcohol (2:1), monohydrate.
Doxycycline hyclate is a yellow crystalline powder soluble in water and in 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. Inactive ingredients in the tablet formulation are: lactose monohydrate; microcrystalline cellulose; sodium lauryl sulfate; sodium chloride; talc; crospovidone; magnesium stearate; povidone; hypromellose phthalate; hypromellose; triethyl citrate; mannitol. Meets USP Dissolution Test 3.
Structure
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Patients taking doxycycline for malaria prophylaxis should be advised: that no present-day antimalarial agent, including doxycycline, guarantees protection against malaria. to avoid being bitten by mosquitoes by using personal protective measures that help avoid contact with mosquitoes, especially from dusk to dawn (for example, staying in well-screened areas, using mosquito nets, covering the body with clothing, and using an effective insect repellent). that doxycycline prophylaxis: should begin 1 to 2 days before travel to the malarious area, should be continued daily while in the malarious area and after leaving the malarious area, should be continued for 4 further weeks to avoid development of malaria after returning from an endemic area, should not exceed 4 months.
All patients taking doxycycline should be advised: to avoid excessive sunlight or artificial ultraviolet light while receiving doxycycline and to discontinue therapy if phototoxicity (for example, skin eruptions, etc.) occurs. Sunscreen or sunblock should be considered [ see Warnings and Precautions ( 5.3 ) ]. to drink fluids liberally along with doxycycline to reduce the risk of esophageal irritation and ulceration [ see Adverse Reactions ( 6.1 ) ]. that the absorption of tetracyclines is reduced when taken with foods, especially those that contain calcium.
However, the absorption of doxycycline is not markedly influenced by simultaneous ingestion of food or milk [ see Drug Interactions ( 7.3 ) ]. that the absorption of tetracyclines is reduced when taken with antacids containing aluminum, calcium or magnesium, bismuth subsalicylate, and iron-containing preparations [ see Drug Interactions ( 7.3 ) ]. that the use of doxycycline might increase the incidence of vaginal candidiasis. Diarrhea is a common problem caused by antibacterials which usually ends when the antibacterial is discontinued.
Sometimes after starting treatment with antibacterials, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after having taken the last dose of antibacterial. If this occurs, patients should contact their physician as soon as possible. Patients should be counseled that antibacterial drugs including doxycycline hyclate delayed-release tablets should only be used to treat bacterial infections.
They do not treat viral infections (for example, the common cold). When doxycycline hyclate delayed-release tablets are prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by doxycycline hyclate delayed-release tablets or other antibacterial drugs in the future.
17.1Instructions for Breaking the 150 mg Doxycycline Hyclate Delayed-Release Dual-Scored Tablet The tablet is marked with separation lines ( score lines ) and may be broken at these score lines to provide any of the following doses. 150 mg treatment (the entire tablet is taken) 100 mg treatment (two thirds of the tablet or two 50 mg tablet segments are taken) 50 mg treatment (one third of the tablet is taken) To break the tablet, the tablet is held between the thumbs and index fingers close to the appropriate score line.
Then, with the score line facing the patient, enough pressure is applied to snap the tablet segments apart (segments that do not break along the score line should not be used). 150 mg treatment 100 mg treatment 50 mg treatment