항생제
Abacavir

Abacavir

Spectrum Of Activity

General Information

Treatment for HIV infection.

Black Box Warning: Abacavir is contraindicated in patients with a prior hypersensitivity reaction to abacavir and in HLA-B5701-positive patients. Screening for the HLA-B5701 allele is required prior to abacavir initiation and when reinitiating therapy in patients with an unknown HLA-B*5701 status who have previously tolerated abacavir. Discontinue abacavir and do not restart if a hypersensitivity reaction is suspected or cannot be ruled out.

Test HLA-B*5701 before use to reduce risk of hypersensitivity reaction.

Monitor viral load (plasma HIV-RNA) prior to initiation or modification of treatment.

Monitor CD4 cell counts prior to initiation or with modification of ARV treatment and every 3-6 months; thereafter during at least the first 2 years of treatment.

Monitor hepatitis B screening at baseline and with modification of ARV treatment.

Perform hepatitis C antibody testing prior to initiation or modification of ARV treatment.

Monitor ALT, AST, and total bilirubin at baseline and with modification of ARV treatment.

Common

  • Rash
  • Nausea
  • Headache
  • Sleep disorder
  • Fever
  • Fatigue
  • Upper respiratory infection

Serious

  • Disorder of cardiovascular system
  • Myocardial infarction
  • Stevens-Johnson syndrome
  • Toxic epidermal necrolysis
  • Lactic acidosis
  • Hepatomegaly
  • Steatosis of liver
  • Hypersensitivity
  • Inhibition by protease inhibition of CYP3A4 mediated alosetron metabolism
  • Methadone- increased plasma clearnace
  • Orlistat- inhibited absorption of antiretroviral agent
  • Ribavirin - fatal or nonfatal lactic acidosis
  • Tipranavir- decreased abacavir levels

Antimicrobial class: Antiretroviral agent, Nucleoside reverse transcriptatse inhibitor

Pregnancy category: C

Average serum half life: 1.2-1.5 hours

Urine penetration: 81% changed, 1.2% unchanged

CSF penetration: Therapeutic

Precautions: Consider underlying risk of coronary heart disease and minimize modifiable risks (e.g. hypertension, diabetes mellitus, smoking).

Discontinue if lactic acidosis or severe hepatomegaly with steatosis are suspected.

Dose adjustment necessary in mild hepatic impairment (Child-Pugh score 5 to 6).