Norvir Sec
Brand names,
Norvir Sec
Analogs
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Brand Names Mixture
- Kaletra (Lopinavir + Ritonavir)
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Chemical_Formula
C37H48N6O5S2
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RX_link
http://www.rxlist.com/cgi/generic2/ritonavirsol.htm
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fda sheet
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msds (material safety sheet)
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Synthesis Reference
No information avaliable
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Molecular Weight
720.946 g/mol
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Melting Point
No information avaliable
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H2O Solubility
Practically insoluble
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State
Solid
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LogP
4.941
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Dosage Forms
Capsule (100 mg); Solution (80 mg/mL of ritonavir)
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Indication
Indicated in combination with other antiretroviral agents for the treatment of HIV-infection.
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Pharmacology
Ritonavir is a protease inhibitor with activity against Human Immunodeficiency Virus Type 1 (HIV-1). Protease inhibitors block the part of HIV called protease. HIV-1 protease is an enzyme required for the proteolytic cleavage of the viral polyprotein precursors into the individual functional proteins found in infectious HIV-1. Ritonavir binds to the protease active site and inhibits the activity of the enzyme. This inhibition prevents cleavage of the viral polyproteins resulting in the formation of immature non-infectious viral particles. Protease inhibitors are almost always used in combination with at least two other anti-HIV drugs.
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Absorption
The absolute bioavailability of ritonavir has not been determined.
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side effects and Toxicity
Human experience of acute overdose with NORVIR is limited. One patient in clinical trials took NORVIR 1500 mg/day for two days. The patient reported paresthesias which resolved after the dose was decreased. A post-marketing case of renal failure with eosinophilia has been reported with ritonavir overdose. The approximate lethal dose was found to be greater than 20 times the related human dose in rats and 10 times the related human dose in mice.
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Patient Information
No information avaliable
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Organisms Affected
Human immunodeficiency virus