Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Monoisotopic mass
444.153265754
InChI
InChI=1S/C22H24N2O8/c1-7-8-5-4-6-9(25)11(8)16(26)12-10(7)17(27)14-15(24(2)3)18(28)13(21(23)31)20(30)22(14,32)19(12)29/h4-7,10,14-15,17,25,27-29,32H,1-3H3,(H2,23,31)/t7-,10+,14+,15-,17-,22-/m0/s1
InChI Key
InChIKey=JBIWCJUYHHGXTC-AKNGSSGZSA-N
IUPAC Name
(4S,4aR,5S,5aR,6R,12aS)-4-(dimethylamino)-3,5,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide
Traditional IUPAC Name
doxycycline
SMILES
[H][C@@]12[C@@H](C)C3=C(C(O)=CC=C3)C(=O)C1=C(O)[C@]1(O)C(=O)C(C(N)=O)=C(O)[C@@H](N(C)C)[C@]1([H])[C@H]2O
Độ hòa tan
630 mg/L (at 25 °C)
pKa (strongest acidic)
-2.2
pKa (Strongest Basic)
7.75
Refractivity
113.89 m3·mol-1
Dược Lực Học :
Doxycycline, a long-acting tetracycline derived from oxytetracycline, is used to inhibit bacterial protein synthesis and treat non-gonococcal urethritis and cervicitis, exacerbations of bronchitis in patients with COPD, and adult periodontitis.
Cơ Chế Tác Dụng :
A synthetic tetracycline derivative with similar antimicrobial activity. Animal studies suggest that it may cause less tooth staining than other tetracyclines. It is used in some areas for the treatment of chloroquine-resistant falciparum malaria (malaria, falciparum). [PubChem]
Doxycycline, like minocycline, is lipophilic and can pass through the lipid bilayer of bacteria. Doxycycline reversibly binds to the 30 S ribosomal subunits and possibly the 50S ribosomal subunit(s), blocking the binding of aminoacyl tRNA to the mRNA and inhibiting bacterial protein synthesis. Doxycycline prevents the normal function of the apicoplast of Plasmodium falciparum, a malaria causing organism.
Dược Động Học :
▧ Absorption :
Completely absorbed following oral administration.
▧ Protein binding :
>90%
▧ Metabolism :
Hepatic
▧ Route of Elimination :
They are concentrated by the liver in the bile and excreted in the urine and feces at high concentrations in a biologically active form.
▧ Half Life :
18-22 hours
Độc Tính :
Symptoms of overdose include anorexia, nausea, diarrhoea, glossitis, dysphagia, enterocolitis and inflammatory lesions (with monilial overgrowth) in the anogenital region, skin reactions such as maculopapular and erythematous rashes, exfoliative dermatitis, photosensitivity, hypersensitivity reactions such as urticaria, angioneurotic oedema, anaphylaxis, anaphyl-actoid purpura, pericarditis, and exacerbation of systemic lupus erythematosus, benign intracranial hypertension in adults disappearing on discontinuation of the medicine, haematologic abnormalities such as haemolytic anaemia, thrombocytopenia, neutropenia, and eosinophilia. LD50=262 mg/kg (I.P. in rat).
Chỉ Định :
Doxycycline is indicated for use in respiratory tract infections caused by Mycoplasma pneumoniae, Haemophilus influenzae, Streptococcus pneumoniae, Legionella spp., or Klebsiella spp. It is also used for prophylaxis of malaria. Doxycycline is indicated for a variety of bacterial infections, from Mycobacterium fortuitum and M. marinum, to susceptible E. coli and Brucella spp. It can be used as an alternative to treating plague, tetanus, Campylobacter fetus
Tương Tác Thuốc :
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Acenocoumarol
The tetracycline, doxycycline, may increase the anticoagulant effect of acenocoumarol.
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Acitretin
Increased risk of intracranial hypertension
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Aluminium
Formation of non-absorbable complexes
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Amobarbital
The anticonvulsant, amobarbital, decreases the effect of doxycycline.
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Amoxicillin
Possible antagonism of action
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Ampicillin
Possible antagonism of action
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Anisindione
The tetracycline, doxycycline, may increase the anticoagulant effect of anisindione.
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Aprobarbital
The anticonvulsant, aprobarbital, decreases the effect of doxycycline.
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Attapulgite
Formation of non-absorbable complexes
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Azlocillin
Possible antagonism of action
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Aztreonam
Possible antagonism of action
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Bacampicillin
Possible antagonism of action
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Benzylpenicillin
Possible antagonism of action
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Bexarotene
Tetracycline derivatives like doxycycline may enhance the adverse/toxic effect of Retinoic Acid Derivatives. Due to the risk of developing pseudotumor cerebri (also known as intracranial hypertension), avoid this combination of drugs if possible. If used concomitantly, monitor for evidence of this interaction (eg, dizziness, diplopia, headache).
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Butabarbital
The anticonvulsant, butabarbital, decreases the effect of doxycycline.
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Butalbital
The anticonvulsant, butalbital, decreases the effect of doxycycline.
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Butethal
The anticonvulsant, butethal, decreases the effect of doxycycline.
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Calcium
Formation of non-absorbable complexes
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Calcium Acetate
Calcium salts such as calcium acetate may decrease the serum concentration of tetracycline derivatives such as doxycycline. In general, the coadministration of oral calcium salts and oral tetracycline derivatives should be avoided. Interactions may be able to be minimized by administering oral calcium preparations several hours before or after the dose of the oral tetracycline derivatives. Even with dose separation, therapy may still be compromised. Monitor for decreased therapeutic effect of oral tetracycline derivatives.
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Calcium Chloride
Calcium salts such as calcium chloride may decrease the serum concentration of tetracycline derivatives such as doxycycline. In general, the coadministration of oral calcium salts and oral tetracycline derivatives should be avoided. Interactions may be able to be minimized by administering oral calcium preparations several hours before or after the dose of the oral tetracycline derivatives. Even with dose separation, therapy may still be compromised. Monitor for decreased therapeutic effect of oral tetracycline derivatives.
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Carbamazepine
The anticonvulsant, carbamazepine, may decrease the therapeutic effect of doxycycline.
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Carbenicillin
Possible antagonism of action
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Clavulanate
Possible antagonism of action
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Cloxacillin
Possible antagonism of action
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Colesevelam
Bile acid sequestrants such as colesevelam may decrease the absorption of Tetracycline Derivatives. Monitor for decreased therapeutic effects of tetracycline derivatives if coadministered with a bile acid sequestrant. If these agents are used concomitantly, separate doses 2 or more hours to minimize the interaction. The manufacturer of colesevelam suggests that drugs should be administered at least 1 hour before or 4 hours after colesevelam.
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Cyclacillin
Possible antagonism of action
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Dicloxacillin
Possible antagonism of action
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Dicoumarol
The tetracycline, doxycycline, may increase the anticoagulant effect of dicumarol.
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Dihydroquinidine barbiturate
The anticonvulsant, dihydroquinidine barbiturate, decreases the effect of doxycycline.
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Ethinyl Estradiol
Doxycycline may decrease the contraceptive effect of ethinyl estradiol.
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Ethotoin
The anticonvulsant, ethotoin, decreases the effect of doxycycline.
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Etretinate
Increased risk of intracranial hypertension
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Flucloxacillin
Possible antagonism of action
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Fosphenytoin
The anticonvulsant, fosphenytoin, decreases the effect of doxycycline.
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Heptabarbital
The anticonvulsant, heptabarbital, decreases the effect of doxycycline.
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Hetacillin
Possible antagonism of action
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Hexobarbital
The anticonvulsant, hexobarbital, decreases the effect of doxycycline.
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Iron
Formation of non-absorbable complexes
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Iron Dextran
Formation of non-absorbable complexes
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Isotretinoin
Increased risk of intracranial hypertension
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Magnesium
Formation of non-absorbable complexes
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Magnesium oxide
Formation of non-absorbable complexes
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Mephenytoin
The anticonvulsant, mephenytoin, decreases the effect of doxycycline.
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Mestranol
This anti-infectious agent could decrease the effect of the oral contraceptive
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Methohexital
The anticonvulsant, methohexital, decreases the effect of doxycycline.
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Methotrexate
The tetracycline, doxycycline, may increase methotrexate toxicity.
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Methylphenobarbital
The anticonvulsant, methylphenobarbital, decreases the effect of doxycycline.
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Meticillin
Possible antagonism of action
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Mezlocillin
Possible antagonism of action
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Nafcillin
Possible antagonism of action
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Oxacillin
Possible antagonism of action
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Penicillin V
Possible antagonism of action
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Pentobarbital
The anticonvulsant, pentobarbital, decreases the effect of doxycycline.
-
Phenobarbital
The anticonvulsant, phenobarbital, may decrease the therapeutic effect of doxycycline.
-
Phenytoin
The anticonvulsant, phenytoin, may decrease the effect of doxycycline.
-
Piperacillin
Possible antagonism of action
-
Pivampicillin
Possible antagonism of action
-
Pivmecillinam
Possible antagonism of action
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Primidone
The anticonvulsant, primidone, decreases the effect of doxycycline.
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Quinidine barbiturate
The anticonvulsant, quinidine barbiturate, decreases the effect of doxycycline.
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Rifabutin
The rifamycin decreases the effect of doxycycline
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Rifampicin
The rifamycin decreases the effect of doxycycline
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Secobarbital
The anticonvulsant , secobarbital, decreases the effect of doxycycline.
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Talbutal
The anticonvulsant, talbutal, decreases the effect of doxycycline.
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Tamsulosin
Doxycycline, a CYP3A4 inhibitor, may decrease the metabolism and clearance of Tamsulosin, a CYP3A4 substrate. Monitor for changes in therapeutic/adverse effects of Tamsulosin if Doxycycline is initiated, discontinued, or dose changed.
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Tazobactam
Possible antagonism of action
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Thiopental
Thiopental may decrease the serum levels of Doxycycline. A reduction in antimicrobial effects may occur. An alternative antibiotic may be considered.
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Ticarcillin
Doxycycline may reduce the effect of Ticarcillin by inhibiting bacterial growth. Ticarcillin exerts its effects on actively growing bacteria. To achieve synergism, Ticarcillin should be administered at least 2 hours prior to using Doxycycline.
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Tolterodine
Doxycycline may decrease the metabolism and clearance of Tolterodine. Adjust Tolterodine dose and monitor for efficacy and toxicity.
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Tretinoin
Doxycycline may increase the adverse effects of oral Tretinoin. Increase risk of pseudotumour cerebri. Concurrent therapy should be avoided.
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Warfarin
The tetracycline, doxycycline, may increase the anticoagulant effect of warfarin.
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Zinc
Formation of non-absorbable complexes
Liều Lượng & Cách Dùng :
Capsule - Oral
Gel, metered - Periodontal
Tablet - Oral
Dữ Kiện Thương Mại
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Nhà Sản Xuất
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Sản phẩm biệt dược : Adoxa
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Sản phẩm biệt dược : Alodox
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Sản phẩm biệt dược : Atridox
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Sản phẩm biệt dược : Doryx
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Sản phẩm biệt dược : Doxy
-
Sản phẩm biệt dược : Doxycin
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Sản phẩm biệt dược : Doxylin
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Sản phẩm biệt dược : Jenacyclin
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Sản phẩm biệt dược : Microdox
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Sản phẩm biệt dược : Monodox
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Sản phẩm biệt dược : Morgidox
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Sản phẩm biệt dược : NicAzelDoxyKit
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Sản phẩm biệt dược : Nu-Doxycycline
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Sản phẩm biệt dược : Ocudox
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Sản phẩm biệt dược : Oracea
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Sản phẩm biệt dược : Periostat
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Sản phẩm biệt dược : Supracyclin
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Sản phẩm biệt dược : Vibra-Tabs
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Sản phẩm biệt dược : Vibramycin
Tài Liệu Tham Khảo Thêm
National Drug Code Directory