<prompt> Eirenz limits HIV infection by:Binding to active site of HIV reverse transcriptaseImpairing the binding of HIV virion to CD4 receptors on T- cellsInhibiting the HIV proteaseServing as an allosteric inhibitor of HIV reverse transcriptase  <response>: Eirenz is a NNI which acts as an allosteric non-competitive inhibitor of HIV reverse transcriptase. It is more potent than zidovudine on HIV-1, but do not inhibit HIV-2. If used alone, viral resistance develops rapidly by point mutation of the enzyme; therefore it should always be combined with 2 other effective drugs. SE of Eirenz : Headache, rashes, dizziness, insomnia, neuro-psychiatric symptoms 