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Managing Side Effects of HIV TreatmentManaging Side Effects of HIV Treatment
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tribuss and contaceptive pills
Feb 15, 2013

can tribuss affect the effectiveness of ovrals contaceptive pills

Response from Dr. Henry

The efavirenz in Tribuss (Atripla in the US) can decrease levels of estrogens reducint effectives of oral contraceptives. Below are summary of some interactions from 2013 US DHHS HIV Treatment Recommendations table:

ethinyl estradiol ¡ê levonorgestrel AUC ¡é 83% norelgestromin AUC ¡é 64% ¡é etonogestrel (implant) possible

Use alternative or additional contraceptive methods. Norelgestromin and levonorgestrel are active metabolites of norgestimate.

Discussion with your HIV dcotor and pharmacist is recommended. KH

Rashes/Dark Red Patches will they go away?
Why do I fall ill so often after starting treatment?

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