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severe back pain with half dosage Epzicom

Nov 20, 2011

can a buildup of Epzicom cause severe lower back pain, even half dosage taken for 4 months with 100 mg Reyataz?

Response from Dr. Young

Hello and thanks for posting.

No, I would not expect that either of the medications in Epzicom (abacavir or lamivudine) to cause low back pain.

Now, that said, I'm very concerned about the dosing of your medications. Is your health care provider aware of you taking only half of your Epzicom (it should be dosed 1 tablet, once-daily)? Are you really taking 100 mg of atazanavir (Reyataz)? 'Taz should be dosed with meals, 300 mg, once daily (if taken with 100 mg of ritonavir) or 400 mg once-daily.

Make sure that you check in with your health care provider to make sure that you're on the right doses. Taking too low of a dose could jeopardize the effectiveness of your meds and select for drug-resistant HIV.


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