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Telithromycin

Macrolide · Antibiotic

Also known as KETEK

MacrolideAntibiotic
CDSCO approvedSchedule H
EXCRETION
not curated
INTERACTIONS
12 major
incl. contraindicated
PREGNANCY
C
FDA category + note
Top interactionssee all 12
  • CilostazoleContraindicatedTextbookKDT 7e · p555
  • AbemaciclibSevereDatabaseDDInter
  • AcalabrutinibSevereDatabaseDDInter
  • AlfentanilSevereDatabaseDDInter

Mechanism

Telithromycin is a ketolide, a semisynthetic derivative of erythromycin. Its structural modifications, including a 3-keto group and a substituted carbamate at C11-C12, reduce its susceptibility to methylase-mediated (erm) and efflux-mediated (mef or msr) resistance mechanisms. This allows it to remain active against many macrolide-resistant gram-positive strains.

Indications

Infections caused by macrolide-resistant gram-positive strains

Dosing

Adult
are available in the U.S. Dosing of acarbose and miglitol are similar. Both are provided as 25, 50, or 100 mg tablets that are taken. <30 mL/minute.. >20 mL/minute).. did not exceed 1000 mg/dL, and no associated pancreatitis was documented; nonetheless, colesevelam should be used cautiously in. patients with plasma triglycerides >200 mg/dL. Colesevelam has no

Pharmacokinetics

Bioavailability
57 (41–112)%
Protein binding
70%
Excretion
23 (19–27)%

Side effects

Common
NauseaVomitingDiarrheaAbdominal pain
Serious
  • Substantial hepatotoxicity
  • QTc interval prolongation
  • Exacerbation of myasthenia gravis
  • Tinnitus and reversible deafness (especially in elderly)

Pregnancy & lactation

Pregnancy

C

Drug interactions

Cilostazole
Contraindicated
Textbook

Increased plasma levels and toxicity of cilostazole.

Should not be administered along with inhibitors of CYP3A4.

Source: KDT 7e · p555

Abemaciclib
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Acalabrutinib
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Alfentanil
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Alfuzosin
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Amisulpride
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Anagrelide
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Apalutamide
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Apixaban
Severe
Database

Drug interaction classified as: absorption, metabolism

Source: DDInter

Arsenic Trioxide
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Astemizole
Severe
Database

Drug interaction classified as: metabolism

Source: DDInter

Atorvastatin
Severe
Database

Drug interaction classified as: metabolism.

Source: DDInter

Related guidelines

Other Macrolide drugs

Ask House about Telithromycin

Continue into a citation-backed clinical answer with the drug context already attached.

Sources: Goodman & Gilman 14e, Harrison 22e·Verified: 2026-05-10 · House clinical team