Comparative Pharmacology
Head-to-head clinical analysis: DOXY 200 versus DOXYCYCLINE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DOXY 200 versus DOXYCYCLINE.
DOXY 200 vs DOXYCYCLINE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Doxycycline inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit, preventing aminoacyl-tRNA from binding to the mRNA-ribosome complex, and thus inhibiting peptide chain elongation. It is bacteriostatic and active against a broad range of gram-positive and gram-negative bacteria, as well as atypical organisms.
Doxycycline inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit, preventing the attachment of aminoacyl-tRNA to the mRNA-ribosome complex. It also exhibits anti-inflammatory and anti-collagenase activities.
200 mg orally once daily or 100 mg orally every 12 hours.
100 mg orally or intravenously every 12 hours on day 1, then 100 mg every 12 hours or 50 mg every 6 hours.
None Documented
None Documented
Clinical Note
moderateMethoxsalen + Doxycycline
"The metabolism of Doxycycline can be decreased when combined with Methoxsalen."
Clinical Note
moderateCyclophosphamide + Doxycycline
"The metabolism of Doxycycline can be decreased when combined with Cyclophosphamide."
Clinical Note
moderatePaclitaxel + Doxycycline
"The metabolism of Doxycycline can be decreased when combined with Paclitaxel."
Clinical Note
moderateDocetaxel + Doxycycline
Terminal elimination half-life: 18–22 hours in adults with normal renal function; prolonged in renal impairment (up to 40 hours).
Terminal elimination half-life is 18–24 hours in patients with normal renal function; prolonged to 20–30 hours in renal impairment; allows once or twice daily dosing.
Renal: 40% unchanged via glomerular filtration; Biliary/fecal: 20–25% as active drug and metabolites; remainder as inactive metabolites.
Renal (40%) and fecal/biliary (60%); undergoes enterohepatic circulation; active drug and metabolites excreted in urine and feces.
Category C
Category D/X
Tetracycline Antibiotic
Tetracycline Antibiotic
"The metabolism of Doxycycline can be decreased when combined with Docetaxel."