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    What are the most common side effects of doxycycline?

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  2. Doxycycline Side Effects: Common, Severe, Long Term - › sfx › doxycycline-side-effects
    • For The Consumer
    • For Healthcare Professionals
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    Applies to doxycycline: oral capsule, oral capsule extended release, oral powder for suspension, oral syrup, oral tablet, oral tablet delayed releaseAlong with its needed effects, doxycycline may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.Check with your doctor immediately if any of the following side effects occur while taking doxycycline:

    Applies to doxycycline: injectable powder for injection, oral capsule, oral delayed release capsule, oral delayed release tablet, oral kit, oral powder for reconstitution, oral syrup, oral tablet, oral and topical kit

    Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.Some side effects may not be reported. You may report them to the FDA.

  3. Doxycycline: 7 things you should know - › tips › doxycycline-patient-tips
    • How it works. Doxycycline is an antibiotic used to treat a wide range of infections caused by susceptible gram negative, gram positive, anaerobic, and other bacteria.
    • Upsides. Active against a wide range of bacteria including some gram negative and positive bacteria, anaerobes, and some parasites (such as Balantidium coli and Entamoeba species).
    • Downsides. If you are between the ages of 18 and 60, take no other medication or have no other medical conditions, side effects you are more likely to experience include
    • Bottom Line. Doxycycline is an effective antibiotic that treats a wide range of infections. However, it is not usually recommended for children aged less than eight nor in pregnant women in the last half of pregnancy.
  4. Doxycycline (Oral Route) Side Effects - Mayo Clinic › drugs-supplements › doxycycline

    Incidence not known Blistering, peeling, or loosening of the skin bloating chills clay-colored stools constipation cough dark urine decreased appetite diarrhea diarrhea, watery and severe, which may also be bloody difficulty with swallowing dizziness fast heartbeat feeling of discomfort fever ...

  5. Doxycycline: Uses, side effects, dosage, warnings, and ... › articles › 326077

    Aug 16, 2019 · Doxycycline is an antibiotic that treats serious bacterial infections. We provide a drug overview, including its uses, how to take it, dosages, side effects, and warnings.

  6. Doxycycline: Side effects, dosage, uses, and more › articles › doxycycline

    Jan 16, 2018 · Doxycycline is an oral drug used to treat infections and acne, and to prevent malaria. It's sold as a generic medication or under the brand-names Acticlate, Doryx, and Doryx MPC. Doxycycline ...

    • Introduction
    • Methods
    • Suppressive Antimicrobial Therapy
    • Prophylaxis
    • Antimicrobial Therapy For Non-Antimicrobial Indications
    • Adverse Effects
    • Change to The Microbiome
    • Antimicrobial Resistance
    • Drug–Drug Interaction
    • Cost

    Since the introduction of early agents such as penicillin, streptomycin, sulphonamides and chloramphenicol around the middle of the twentieth century,1 antibiotics have significantly reduced the morbidity and mortality of infectious diseases that were previously uncontrollable, or even lethal.2 Prolonged courses of antibiotics have been used for prophylaxis and suppression of infection since 1962 when penicillins were first used in managing sickle cell disease,3,4 and 1944, when a prolonged course of sulfadiazine successfully treated an actinomycosis superinfection.5 In modern medicine, antibiotics are used for long-term therapy in a number of other ways in addition to suppression of ‘incurable’ infections: antibiotic prophylaxis in immunosuppression such as caused by HIV, post-transplantation and post-splenectomy, and for patient groups where antibiotics are used for purposes ostensibly not related to infection but as immune-modulating agents, such as minocycline in dermatology, az...

    A search of the literature was performed focusing on international guidelines and recommendations, where available. We identified conditions where antibacterial agents were prescribed, using a duration of >12 months to define ‘long-term’. Searches of PubMed were conducted for articles published in English, from January 1966 to October 2016, using the terms ‘suppressive’, ‘prophylaxis’, ‘long-term’ and ‘antibiotics’. Relevant articles published between 1940 and 1966 were identified through searches in the authors’ personal files, and Google Scholar. Relevant references cited in those articles were reviewed. Owing to the extensive scope of the topic of prolonged antibacterial therapy, a typical systematic review with a complete, exhaustive analysis of published guidelines and recommendations would be very difficult. The aim of this review was to summarize the variety of reported usage and the level of evidence to support prolonged antibacterial therapy for various indications, to gene...

    Prosthetic joint infection

    Even after >40 years of improvements in surgical techniques and the use of antimicrobial prophylaxis, the rates of prosthetic joint infection remain at ∼1%–2% per procedure.17 Despite extensive research, the role of suppressive antibiotics in the management of chronic prosthetic joint infections has been difficult to define, and the majority of recommendations are based on expert opinion, rather than clinical evidence.18 The IDSA Guidelines for Diagnosis and Management of Prosthetic Joint Inf...

    Vascular graft infection

    The incidence of infections after vascular graft procedures has been reported to be between 1% and 6%.29 The American Heart Association Guidelines classify vascular graft infection into five classes, Samson I–V,30 reflecting how extensive the infection is, and involvement of the graft. At least 6 weeks of intravenous therapy is recommended for infections involving the graft, followed by 6 months of an appropriate oral agent based on microbiology results. Long-term suppressive therapy should b...

    Cardiovascular implantable electronic device infection

    Cardiovascular implantable electronic devices (CIEDs) include implantable cardiac defibrillators, cardiac resynchronization therapy devices and permanent pacemakers. The incidence of implantable cardiac device infections is estimated to be <2%37 and cardiac device infections (including device lead infections) now make up ∼10% of all endocarditis cases.38 Guidelines recommend complete removal of CIEDs in patients with device-related infections. However, comorbidities or other factors may make...

    Antibiotics may be used to prevent an initial infection (primary prophylaxis), or to prevent a recurrence, or reactivation of an infection (secondary prophylaxis).6 Antibiotics may be used for brief courses for surgical prophylaxis, and post-exposure prophylaxis (e.g. contacts of patients with Neisseria meningitidis or Bordetella pertussis infections).6In this review we focus on antibiotic prophylaxis in the context of long-term use, defined as a duration of >12 months. The review is limited to the most common and best-supported uses of antibacterial long-term prophylaxis.

    Cystic fibrosis

    The American Thoracic Society recommends chronic use of azithromycin in patients with cystic fibrosis (CF) with Pseudomonas aeruginosa persistently isolated from respiratory specimens.84 The role of macrolide antibiotics in patients with CF is believed to be immunomodulatory rather than antibacterial.85 A Cochrane review looked at 31 randomized controlled trials comparing short- and long-term use of macrolide antibiotics compared with placebo or other antimicrobial classes. Patients receiving...

    Chronic airways disease

    Prolonged courses of macrolide antibiotics, such as roxithromycin, clarithromycin and azithromycin, have been shown to reduce the signs and symptoms of diffuse panbronchiolitis, as well as improve survival, in chronic airways diseases such as asthma and non-CF bronchiectasis; however, there is insufficient evidence to support its use.88 A retrospective cohort study of 92 576 patients with chronic airways disease in the UK demonstrated that 0.61% were on long-term antibiotics, with tetracyclin...


    Tetracyclines have multiple anti-inflammatory actions, including reducing neutrophil chemotaxis and inhibiting pro-inflammatory cytokines.94 Therefore its role in acne vulgaris is as an anti-inflammatory, as well as having direct antibacterial effects.94 A Cochrane review95 of 27 randomized controlled trials compared minocycline with other tetracyclines, isotretinoin, topical therapy and hormonal therapy in the treatment of inflammatory acne vulgaris. There was no reliable evidence that minoc...

    The use of long-term antibiotics has been well studied for only certain indications. Antibiotics have often been studied for short-term use and the long-term side effects are often less well described. It is likely however that the side effects, real and theoretical, from short-term use, probably apply to prolonged use. Potential risks of long-term suppressive antibiotics include the emergence of resistance, medication side effects and toxicity, and C. difficile infections. Careful consideration and clinical judgement should be utilized when choosing which patients should be placed on long-term oral suppressive therapy.90 Known complications from prolonged antibiotic therapy may include tendinopathy with fluoroquinolones,104 photosensitivity with doxycycline,105 peripheral neuropathy with metronidazole106 and cytopenias with linezolid.106 Indeed, prolonged courses of metronidazole and linezolid are usually not used for these reasons. Serious, potentially life-threatening side effect...

    The term microbiota is defined as the organisms that live in symbiosis in a human and can consist of up to 100 trillion micro-organisms per person, primarily made up of bacteria in the gastrointestinal tract.116,,117 The microbiome includes these micro-organisms, but also their genes and their surrounding environment.118 In addition to conventional dose-related or idiosyncratic complications of prolonged therapy there are some more indirect or less well-established side effects, including effects to the microbiome. A well-accepted effect is that of promoting resistant commensal organisms in the gut,119 discussed in further detail below. More speculative are other long-term effects of antibiotics that include increasing mitochondrial dysfunction and oxidative damage120 and altering the microbiome even with only short courses of therapy121 with unclear consequences.122 Since microbiome ecology has been associated with, inter alia, psychiatric states and body mass index these changes m...

    In addition to the evidence of emerging antimicrobial resistance highlighted in the specific conditions above, multiple studies have shown a significant link between prior or current antibiotic use, and isolation of resistant Enterobacteriaceae,125,,126 enterococci125 and Pseudomonas.127 Increasingly widespread use of macrolide antibiotics has resulted in the emergence of macrolide-resistant S. aureus.128–130 It has also been noted that the strength of the association increased as the duration of use increased.127 The escalating problem of antimicrobial resistance is attributed to use in healthcare and agriculture; however, the effect of prolonged use of antibiotics as prophylaxis or for suppression on microbial resistance patterns has not been studied. Although this intervention could change microbial resistance patterns, the extent of this change is not known.88

    Antibiotics can also interact with other regular medications, affecting serum drug levels by inhibiting or inducing cytochrome P450,131 a host of liver and small intestinal enzymes that have a number of roles, the most important of which aids in the metabolism of drugs.132 For example, rifampicin is a potent inducer of cytochrome P450, and can reduce blood concentrations of warfarin, the oral contraceptive pill, cyclosporine, corticosteroids and methadone, just to name a few.133 Drugs can act as an enzyme substrate, an inducer, or an inhibitor, and can thus cause a number of adverse effects, including drug toxicities and reduced pharmacological effect.131Medication reviews should be performed before commencing long-term antibiotics, with careful attention paid to whether the drugs prescribed can cause significant drug–drug interactions.

    In general, a low cost threshold will have to be set to make antibiotics cost-effective. For example, a hospital day in Australia has a nominal cost of >$A600.134 A week of inpatient therapy would be >$A4000. In Australia, a pack of 20 amoxicillin tablets costs $A8.53, so 1 week of inpatient therapy is ∼9000 days of prophylaxis in cost. Previously this sort of prophylaxis has been shown to be cost-effective in the setting of post-splenectomy care.135That example uses the cheapest alternative. The most expensive antibiotic in our hands at the moment is pristinamycin, which is about $A4 a tablet. The point is that prophylaxis, if it works, is clearly effective in terms of cost of medicines—it is only the cost of side effects including promotion of resistance that are likely to make it unattractive.

    • Jillian Shu Yun Lau, Tony M. Korman, Ian Woolley
    • 8
    • 2018
  7. 12 Side Effects When Using Antibiotics in the Long Term | MD ... › side-effects-of-long-term

    Apr 18, 2021 · One of the side effects of long-term antibiotic use is the destroying of normal gut flora, which plays a critical role in the development of metabolic disorders and inflammatory diseases. Prolonged exposure to antibiotics is related to diabetes, metabolic syndrome, obesity, etc.

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