{"id":7851,"date":"2026-04-18T00:09:32","date_gmt":"2026-04-18T00:09:32","guid":{"rendered":"https:\/\/bristishpharmacy.co.uk\/?post_type=product&#038;p=7851"},"modified":"2026-09-17T19:06:14","modified_gmt":"2026-09-17T19:06:14","slug":"doxiciclina-100mg","status":"publish","type":"product","link":"https:\/\/bristishpharmacy.co.uk\/es\/shop\/doxiciclina-100mg\/","title":{"rendered":"Doxiciclina 100 mg"},"content":{"rendered":"<h1>\u00a0<\/h1>\n<div class=\"container\">\n<div id=\"model-response-message-contentr_0e48957bb020aa37\" class=\"markdown markdown-main-panel md-content enable-luminous-fast-follows enable-updated-hr-color stronger tutor-markdown-rendering\" dir=\"ltr\" aria-live=\"polite\">\n<h3 data-path-to-node=\"3\">Clinical Monograph: Doxycycline 100 mg<\/h3>\n<h2 data-path-to-node=\"4\">1. Classification and Chemical Overview<\/h2>\n<p data-path-to-node=\"5\">Doxycycline is a broad-spectrum polyketide antibiotic derived from oxytetracycline, chemically designated as <span class=\"math-inline\" data-math=\"(4S,4aR,5S,5aR,6R,12aS)-4-(dimethylamino)-3,5,10,12,12a\\text{-pentahydroxy-6-methyl-1,11-dioxo-}1,4,4a,5,5a,6,11,12a\\text{-octahydrotetracene-2-carboxamide}\" data-index-in-node=\"109\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord\">4<\/span><span class=\"mord mathnormal\">S<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">4<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mord mathnormal\">R<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">5<\/span><span class=\"mord mathnormal\">S<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">5<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mord mathnormal\">R<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">6<\/span><span class=\"mord mathnormal\">R<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">12<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mord mathnormal\">S<\/span><span class=\"mclose\">)<\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord\">4<\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mopen\">(<\/span><span class=\"mord mathnormal\">d<\/span><span class=\"mord mathnormal\">im<\/span><span class=\"mord mathnormal\">e<\/span><span class=\"mord mathnormal\">t<\/span><span class=\"mord mathnormal\">h<\/span><span class=\"mord mathnormal\">y<\/span><span class=\"mord mathnormal\">l<\/span><span class=\"mord mathnormal\">amin<\/span><span class=\"mord mathnormal\">o<\/span><span class=\"mclose\">)<\/span><span class=\"mbin\">\u2212<\/span><\/span><span class=\"base\"><span class=\"mord\">3<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">5<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">10<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">12<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">12<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mord text\"><span class=\"mord\">-pentahydroxy-6-methyl-1,11-dioxo-<\/span><\/span><span class=\"mord\">1<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">4<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">4<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">5<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">5<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">6<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">11<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">12<\/span><span class=\"mord mathnormal\">a<\/span><span class=\"mord text\"><span class=\"mord\">-octahydrotetracene-2-carboxamide<\/span><\/span><\/span><\/span><\/span><\/span>. Under the Anatomical Therapeutic Chemical (ATC) system, doxycycline is indexed under J01AA02.<\/p>\n<ul data-path-to-node=\"6\">\n<li>\n<p data-path-to-node=\"6,0,0\"><b data-path-to-node=\"6,0,0\" data-index-in-node=\"0\">Product Context:<\/b> The 100 mg strength represents a standard adult therapeutic unit dose commonly utilized for systemic infections, acne management, and prophylactic regimens (such as malaria prevention).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"6,1,0\"><b data-path-to-node=\"6,1,0\" data-index-in-node=\"0\">Regulatory Status:<\/b> Regulated strictly as a Prescription Only Medicine (POM) internationally. It is not classified as a controlled substance due to an absence of abuse liability or central nervous system reinforcement properties.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"7\">2. Mechanism of Action and Pharmacodynamics<\/h2>\n<p data-path-to-node=\"8\">Doxycycline acts primarily as a bacteriostatic antimicrobial agent:<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-path-to-node=\"9,0,0\" data-index-in-node=\"0\">Inhibition of Protein Synthesis:<\/b> Reversibly binds to the bacterial 30S ribosomal subunit, preventing the access of aminoacyl-tRNA to the mRNA-ribosome complex and halting peptide chain elongation.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><b data-path-to-node=\"9,1,0\" data-index-in-node=\"0\">Spectrum of Activity:<\/b> Exhibits broad-spectrum activity against Gram-positive pathogens (such as <i data-path-to-node=\"9,1,0\" data-index-in-node=\"96\">Staphylococcus aureus<\/i> y <i data-path-to-node=\"9,1,0\" data-index-in-node=\"122\">Streptococcus pneumoniae<\/i>), Gram-negative bacteria, atypical organisms (<i data-path-to-node=\"9,1,0\" data-index-in-node=\"193\">Chlamydia<\/i>, <i data-path-to-node=\"9,1,0\" data-index-in-node=\"204\">Mycoplasma<\/i>, <i data-path-to-node=\"9,1,0\" data-index-in-node=\"216\">Legionella<\/i>), and certain protozoan parasites.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,2,0\"><b data-path-to-node=\"9,2,0\" data-index-in-node=\"0\">Anti-Inflammatory Properties:<\/b> In dermatological applications (e.g., acne vulgaris), doxycycline exerts non-antimicrobial anti-inflammatory effects by inhibiting neutrophil chemotaxis and downregulating matrix metalloproteinases (MMPs).<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"10\">3. Approved Clinical Indications and Dosing Scope<\/h2>\n<p data-path-to-node=\"11\">Licensing for doxycycline 100 mg includes:<\/p>\n<ul data-path-to-node=\"12\">\n<li>\n<p data-path-to-node=\"12,0,0\"><b data-path-to-node=\"12,0,0\" data-index-in-node=\"0\">Respiratory Infections:<\/b> Treatment of community-acquired pneumonia, acute exacerbations of chronic bronchitis, and sinusitis caused by susceptible organisms.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"12,1,0\"><b data-path-to-node=\"12,1,0\" data-index-in-node=\"0\">Dermatology:<\/b> Management of severe acne vulgaris and rosacea as part of combination or standalone regimens.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"12,2,0\"><b data-path-to-node=\"12,2,0\" data-index-in-node=\"0\">Sexually Transmitted Infections:<\/b> Treatment of uncomplicated urethral, endocervical, or rectal infections caused by <i data-path-to-node=\"12,2,0\" data-index-in-node=\"115\">Chlamydia trachomatis<\/i>.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"12,3,0\"><b data-path-to-node=\"12,3,0\" data-index-in-node=\"0\">Zoonotic &amp; Vector-Borne Diseases:<\/b> Treatment of Lyme disease (<i data-path-to-node=\"12,3,0\" data-index-in-node=\"61\">Borrelia burgdorferi<\/i>), Rocky Mountain spotted fever, anthrax prophylaxis, and malaria chemoprophylaxis.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"13\"><i data-path-to-node=\"13\" data-index-in-node=\"0\">Dosing &amp; Administration Regimen:<\/i><\/p>\n<ul data-path-to-node=\"14\">\n<li>\n<p data-path-to-node=\"14,0,0\"><b data-path-to-node=\"14,0,0\" data-index-in-node=\"0\">Standard Adult Dosing:<\/b> Typically initiated at 200 mg on the first day (administered as a single 200 mg dose or 100 mg every 12 hours), followed by a maintenance dose of 100 mg once daily (or 100 mg every 12 hours for more severe infections).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"14,1,0\"><b data-path-to-node=\"14,1,0\" data-index-in-node=\"0\">Administration Precautions:<\/b> Tablets or capsules must be swallowed whole with an adequate volume of fluid (at least 200\u2013250 mL of water) in an upright posture. <b data-path-to-node=\"14,1,0\" data-index-in-node=\"159\">Do not lie down immediately for at least 30 minutes<\/b> post-administration to minimize the risk of esophageal irritation, ulceration, or pill-induced esophagitis.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"14,2,0\"><b data-path-to-node=\"14,2,0\" data-index-in-node=\"0\">Food &amp; Cation Interactions:<\/b> Can be administered with food or milk if gastric irritation occurs, though concurrent ingestion of multivalent cations (calcium, iron, magnesium, aluminum) significantly impairs absorption.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"15\">4. Pharmacokinetic Profile and Metabolic Fate<\/h2>\n<ul data-path-to-node=\"16\">\n<li>\n<p data-path-to-node=\"16,0,0\"><b data-path-to-node=\"16,0,0\" data-index-in-node=\"0\">Absorption:<\/b> Rapidly and almost completely absorbed from the gastrointestinal tract, boasting high oral bioavailability (<span class=\"math-inline\" data-math=\"\\ge 90\\%\" data-index-in-node=\"120\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mrel\">\u2265<\/span><\/span><span class=\"base\"><span class=\"mord\">90%<\/span><\/span><\/span><\/span><\/span>). Absorption is minimally affected by food compared to older tetracyclines. Peak plasma concentrations (<span class=\"math-inline\" data-math=\"C_{max}\" data-index-in-node=\"233\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">C<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">ma<\/span><span class=\"mord mathnormal mtight\">x<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>) are attained within 2 hours (<span class=\"math-inline\" data-math=\"T_{max}\" data-index-in-node=\"271\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">T<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\"><span class=\"mord mathnormal mtight\">ma<\/span><span class=\"mord mathnormal mtight\">x<\/span><\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"16,1,0\"><b data-path-to-node=\"16,1,0\" data-index-in-node=\"0\">Distribution:<\/b> Highly lipophilic; distributes extensively into body tissues, pleural fluids, bronchial secretions, and prostatic tissue. Plasma protein binding is high (~82% to 93%).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"16,2,0\"><b data-path-to-node=\"16,2,0\" data-index-in-node=\"0\">Biotransformation:<\/b> Undergoes minimal hepatic metabolism. Unlike other tetracyclines, doxycycline is eliminated primarily via non-renal pathways, making it safer for use in patients with renal impairment.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"16,3,0\"><b data-path-to-node=\"16,3,0\" data-index-in-node=\"0\">Elimination:<\/b> Excreted predominantly via the gastrointestinal tract through feces (unabsorbed drug and biliary elimination, ~40% to 50%) and secondarily via renal filtration (~35% to 60%). The terminal elimination half-life (<span class=\"math-inline\" data-math=\"t_{1\/2}\" data-index-in-node=\"224\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">t<\/span><span class=\"msupsub\"><span class=\"vlist-t vlist-t2\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">1\/2<\/span><\/span><\/span><\/span><span class=\"vlist-s\">\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>) is exceptionally long, averaging 16 to 22 hours, supporting convenient once-daily dosing.<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"17\">5. Physiological Effects and Adverse Event Spectrum<\/h2>\n<p data-path-to-node=\"18\">Doxycycline alters gastrointestinal flora and induces cutaneous photosensitization.<\/p>\n<h3 data-path-to-node=\"19\">Adverse Drug Reaction Spectrum<\/h3>\n<ul data-path-to-node=\"20\">\n<li>\n<p data-path-to-node=\"20,0,0\"><b data-path-to-node=\"20,0,0\" data-index-in-node=\"0\">Common (<span class=\"math-inline\" data-math=\"\\ge 1\/100\" data-index-in-node=\"8\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mrel\">\u2265<\/span><\/span><span class=\"base\"><span class=\"mord\">1\/100<\/span><\/span><\/span><\/span><\/span> to <span class=\"math-inline\" data-math=\"&lt;1\/10\" data-index-in-node=\"21\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mrel\">&lt;<\/span><\/span><span class=\"base\"><span class=\"mord\">1\/10<\/span><\/span><\/span><\/span><\/span>):<\/b> Nausea, vomiting, diarrhea, abdominal discomfort, photosensitivity reactions (exaggerated sunburn upon ultraviolet exposure), vulvovaginal candidiasis.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"20,1,0\"><b data-path-to-node=\"20,1,0\" data-index-in-node=\"0\">Uncommon (<span class=\"math-inline\" data-math=\"\\ge 1\/1,000\" data-index-in-node=\"10\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mrel\">\u2265<\/span><\/span><span class=\"base\"><span class=\"mord\">1\/1<\/span><span class=\"mpunct\">,<\/span><span class=\"mord\">000<\/span><\/span><\/span><\/span><\/span> to <span class=\"math-inline\" data-math=\"&lt;1\/100\" data-index-in-node=\"25\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mrel\">&lt;<\/span><\/span><span class=\"base\"><span class=\"mord\">1\/100<\/span><\/span><\/span><\/span><\/span>):<\/b> Dyspepsia, dysphagia, glossitis, skin rashes, urticaria, headache.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"20,2,0\"><b data-path-to-node=\"20,2,0\" data-index-in-node=\"0\">Rare \/ Severe (&lt;1\/1,000):<\/b> Pseudomembranous colitis (<i data-path-to-node=\"20,2,0\" data-index-in-node=\"52\">Clostridioides difficile<\/i>-associated diarrhea), esophageal ulceration, hepatotoxicity, blood dyscrasias (neutropenia, thrombocytopenia), intracranial hypertension (pseudotumor cerebri, characterized by headache and visual disturbances), severe hypersensitivity reactions (anaphylaxis, DRESS syndrome, Stevens-Johnson syndrome).<\/p>\n<\/li>\n<\/ul>\n<h2 data-path-to-node=\"21\">6. Contraindications, Drug Interactions, and Clinical Precautions<\/h2>\n<h3 data-path-to-node=\"22\">Contraindicaciones<\/h3>\n<ul data-path-to-node=\"23\">\n<li>\n<p data-path-to-node=\"23,0,0\">Known hypersensitivity to doxycycline, other tetracycline-class antibiotics, or formulation excipients.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"23,1,0\">Pregnancy during the second and third trimesters (risk of permanent tooth discoloration, enamel hypoplasia, and suppression of bone growth in the fetus).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"23,2,0\">Pediatric use in children under 8 years of age (risk of permanent dental staining and enamel defects, except in life-threatening scenarios like anthrax exposure where alternative therapy is unavailable).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"23,3,0\">Severe hepatic impairment.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"24\">Key Drug Interactions<\/h3>\n<ul data-path-to-node=\"25\">\n<li>\n<p data-path-to-node=\"25,0,0\"><b data-path-to-node=\"25,0,0\" data-index-in-node=\"0\">Antacids, Iron Preparations, &amp; Multivalent Cations:<\/b> Oral antacids containing aluminum, calcium, or magnesium, as well as bismuth subsalicylate and iron supplements, bind to doxycycline in the gastrointestinal lumen, forming unabsorbable chelate complexes and reducing antimicrobial efficacy; separate dosing by 2 to 3 hours.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"25,1,0\"><b data-path-to-node=\"25,1,0\" data-index-in-node=\"0\">Anticoagulants (Warfarin):<\/b> Tetracyclines may depress plasma prothrombin activity; patients receiving anticoagulant therapy require close monitoring of International Normalized Ratio (INR).<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"25,2,0\"><b data-path-to-node=\"25,2,0\" data-index-in-node=\"0\">Penicillin-Class Antibiotics:<\/b> Because bacteriostatic drugs like doxycycline may interfere with the bactericidal action of penicillins, concurrent use should generally be avoided.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"25,3,0\"><b data-path-to-node=\"25,3,0\" data-index-in-node=\"0\">Oral Contraceptives:<\/b> May infrequently reduce the efficacy of estrogen-containing oral contraceptives, prompting counseling on barrier backup methods during therapy.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"26\">Clinical Precautions and Monitoring<\/h3>\n<ul data-path-to-node=\"27\">\n<li>\n<p data-path-to-node=\"27,0,0\"><b data-path-to-node=\"27,0,0\" data-index-in-node=\"0\">Photosensitivity Warning:<\/b> Advise patients to avoid excessive exposure to direct sunlight or artificial UV\/tanning beds due to the risk of severe phototoxic dermatitis. Discontinue use at the first evidence of skin erythema.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"27,1,0\"><b data-path-to-node=\"27,1,0\" data-index-in-node=\"0\">Esophageal Ulceration Risk:<\/b> Strict adherence to adequate fluid intake and remaining upright post-dosing is mandatory to prevent severe esophageal injury.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"27,2,0\"><b data-path-to-node=\"27,2,0\" data-index-in-node=\"0\">Superinfection Risks:<\/b> Prolonged antimicrobial use may result in overgrowth of non-susceptible organisms, including fungi (<i data-path-to-node=\"27,2,0\" data-index-in-node=\"122\">Candida<\/i>) or <i data-path-to-node=\"27,2,0\" data-index-in-node=\"134\">Clostridioides difficile<\/i>. Monitor for signs of severe diarrhea.<\/p>\n<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n    <div class=\"xs_social_share_widget xs_share_url after_content \t\tmain_content  wslu-style-1 wslu-share-box-shaped wslu-fill-colored wslu-none wslu-share-horizontal wslu-theme-font-no wslu-main_content\">\n\n\t\t\n        <ul>\n\t\t\t        <\/ul>\n    <\/div>","protected":false},"excerpt":{"rendered":"<p data-path-to-node=\"1\">Doxycycline 100 mg is a broad-spectrum, semi-synthetic tetracycline-class antibiotic. It is indicated for the treatment of a wide array of bacterial infections, including respiratory tract infections, acne vulgaris, sexually transmitted infections, and certain tick-borne or zoonotic diseases.<\/p>\n<h3 data-path-to-node=\"3\">\u00a0<\/h3>","protected":false},"featured_media":7873,"comment_status":"closed","ping_status":"closed","template":"","meta":{"postBodyCss":"","postBodyMargin":[],"postBodyPadding":[],"postBodyBackground":{"backgroundType":"classic","gradient":""}},"product_brand":[],"product_cat":[15],"product_tag":[223],"class_list":["post-7851","product","type-product","status-publish","has-post-thumbnail","product_cat-uncategorized","product_tag-doxycycline-100mg","instock","shipping-taxable","purchasable","product-type-variable"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Doxycycline 100mg - British Pharmacy<\/title>\n<meta name=\"description\" content=\"Doxycycline 100mg is a broad-spectrum tetracycline antibiotic\u00a0used to treat a variety of bacterial infections.100mg dose is one of the most common strengths\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bristishpharmacy.co.uk\/es\/shop\/doxiciclina-100mg\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Doxycycline 100mg\" \/>\n<meta property=\"og:description\" content=\"Doxycycline 100 mg is a broad-spectrum, semi-synthetic tetracycline-class antibiotic. 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