Atripla Every Other Day
Nov 17, 2008
Dr. DeJesus, My Dr. suggested to me that I would be a good candidate for taking Atripla Every Other day. Do you every suggest this to patients in your office? Cant wait to hear from you on this one
Response from Dr. DeJesus
Atripla, as you probably know, is a coformulation of efavirenz, tenofovir and emtricitabine. All these drugs have very long half lives, which means that they stay in your bloodstream for a long time (days) after you take the dose. This property has made some experts speculate on the use of these agents at a less frequent dosing schedule.
There are data with the use of some of the components on Atripla (tenofovir and emtricitabine) at a longer dose schedule, but these data have been collected in patients that have some degree of renal insufficiency (kidney dysfunction), because these two drugs are eliminated by the body in the urine, so they remain even longer in the bloodstream in patients with kidney problems. But this is not the case for efavirenz, one of the components on Atripla.
On the other hand, there is minimal data with the use of Atripla taken 5 days a week, instead of 7 days a week (The FOTO Study, Five-days On, Two-days Off). So far, this study conducted in only 60 patients, has shown very encouraging results. I will caution that these results are too premature, and I will not advise you or anyone taking Atripla to reduce its dose to anything less than the dose recommended (one pill a day) until appropriate, larger, randomized, prospective studies are conducted to evaluate the efficacy and safety if this treatment strategy.
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