Return of side effects
Jul 7, 2010
My partner started treatment on Truvada and Isentress 28 days ago and had a bad week of side effects, tired all the time, weak, headache, insomnia. At about the 7th day almost all the side effects went away and if they occurred at all they were minor after that. He was taking a 200mg magnesium supplement with his meds as he has a minor atrial fibrilation and his cardiologist told him that could help control it.
However, we discovered from researching online that antacids (containing 1800-2800mg of magnesium) have a large absorption effect on elvitegravir and GSK-572 (both experimental) so he told his doctor (wish it had been the other way around) that he was moving the magnesium to 4 hours away from his other medications. (One of the studies found that a multi-vitamin containing the same amount of magnesium he was taking affected absorption but to a much lesser degree. About a week later he started experiencing a lot of the same side effects he had at the very beginning, tiredness, headache, insomnia, plus diarrhea. He had actually had diarrhea before he started his meds that stopped almost instantly the day he started them.
My question is can side effects recur normally once they've gone away or do you think all of a sudden he was absorbing more Isentress due to his stopping the magnesium? Also, right about the same time the diarrhea started he had also started eating a fair amount of raw broccoli. Could that cause his digestive problems?
Response from Dr. Henry
From information you provided it is possible but seems somewhat unlikely that the diarrhea is due simply to raltegravir. Those symptoms can be a challenge to sort out. Certainly broccoli and other vegetables can trigger GI symptoms in some patients so that is a complicating factor. Magnesium supplements can also cause stomach complaints in some patients. A clinical assessment including possibly a gut work up may be in order if those symptoms persist over the next week. KH
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