|side effects on nevirapine and efavirenz
Mar 28, 2006
I would be grateful for advice on a medication change. I was diagnosed HIV positive in 1998 and responded successfully to a combination of nevirapine, AZT and 3TC. I rapidly achieved an undetectable viral load and a CD4 count in the 800 region (and have remained so since).
My HIV doctor finally persuaded me to switch from nevirapine to efavirenz last year due to ongoing abnormal liver function tests. I was initially quite reluctant as I had no other side effects and tolerated nevirapine well. However, I was eventually persuaded to switch because of concerns about the risk of long term liver damage.
Initially I experienced terrible CNS side effects from efavirenz, but after a year, they have now more or less subsided. However, my cholesterol levels have gone from a healthy 3mmol/l to 7.3 at my last checkup (sorry I know you measure in mg/dl in the USA rather than mmol/l here in the UK). My triglyceride levels have gone up to 2.15. The total cholesterol/HDL ratio is within the normal range. Otherwise, I am fit, healthy 37 year old man, exercise regularly and have a blood pressure of 90/60. My doc is recommending a change of medication but I am reluctant to go onto a PI. Do you have any other suggestions? I have heard about treatment with 4 nukes but I am having trouble trying to find much information about this. Any info or advice would be appreciated!! Andy, UK
Response from Dr. Henry
Efavirenz often will increase plasma lipids more than nevirapine. I often would switch to atazanavir (+/- ritonavir). Use of ritonavir would hinge on whether there is any history of resistance or need for stomach acid drugs. I also might switch off the AZT to abacavir or tenofovr (sometimes helps the lipids a bit as well). If your liver enzymes improved after switching off the nevirapine that would suggest that nevirapine was involved and I would not be anxious to switch back. If the liver enzymes did not change and aren't too high then going back to nevirapine might be another consideration. KH
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