Feb 6, 2006
I have a friend who has been taking anti-viral meds for 20 months . He recently has been off the meds for 3weeks due to the shortage of them from the clinic. He has now received another supply. My question is, how will this 3-week break from taking the meds affect his system? Will the virus build up an immunity against the meds? or will they still be effective?. His last CD4 was 662 and VL undeectable.
Response from Dr. Henry
If you stop a regimen containing Sustiva (efavirenz)or Viramune (nevirapine) there is a risk for development of resistance to those drugs over the next couple of weeks. Many patients would do OK restarting the same meds but s subset may have developed resistance with suboptimal response depending on a large number of individual variables. Stopping and starting medications is not generally recommended outside of a research study at this time. The recently stopped SMART study illustrates the clinical danger instopping medications versus continuing medications for some patients. KH
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