Fosamprenavir

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Definition
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Virustatic. Inhibitor of HIV protease. Prodrug of Amprenavir.

Indication
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Antiretroviral combination therapy for the treatment of HIV-1 infection in experienced patients, in particular those pre-treated with protease inhibitors.

Notice!

Consideration of the viral resistance pattern and pretreatment of the patient, especially with other protease inhibitors!

Pregnancy/nursing period
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Contraindicated during pregnancy and lactation (insufficient data available).

Dosage and method of use
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  • Pat. > 18 y.: Monotherapy: 2 times/day 1400 mg p.o. (not recommended for pretreated patients).
  • Combination with ritonavir: fosamprenavir: 2 times/day 700 mg p.o. + ritonavir: 2 times/day 100 mg p.o. Alternatively: fosamprenavir 1 time / day 1400 mg p.o. and ritonavir 1 time / day 200 mg p.o.

Undesirable effects
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Often cutaneous NW like maculopapular exanthema. Occasionally gastrointestinal symptoms (diarrhoea, vomiting), headaches.

Interactions
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Caution in combination with Lopinavir: decrease of the plasma levels of both substances (AUC, Cmin)!

Notice! Severe drug interactions can potentially occur with drugs such as amiodarone, lidocaine (systemic use), tricyclic antidepressants, quinidine.

Contraindication
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Hypersensitivity to the substance, comedication with benzodiazepines (midazolam, triazolam), ergotamine derivatives, cisapride, neuroleptics.

Preparations
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Telzir

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Etravirin;

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Last updated on: 29.10.2020