Saint John's Wort for depression - interaction with HIV meds?
Oct 28, 1997
Dear Dr. Gallant: There has been a lot of talk recently about the effectiveness of Hypericum (Saint John's Wort) in the treatment of depression. I suffer from depression myself and have been considering starting SJW. My question is this: I am currently on d 4t/3tc/ritonavir/saquinavir and am worried about a possible toxic interaction with the SJW. For the moment I have been taking 2 1000 mg capsules (dried aerial parts) per day. Do you know of any studies on this subject? Can you advise me in any way? Thank you so much.
Response from Dr. Gallant
We generally know very little about drug interactions between alternative therapies and approved medications. Drug interaction studies are complex and expensive and tend only to be performed to look for interactions between commonly combined medications; they aren't studied using alternative therapies or recreational drugs.
When there are interactions, we usually learn about them from reports of adverse events in people taking the combination. I haven't heard of any such problems with St. John's Wort, and there are certainly a lot of people taking it. (I thought about it myself when I saw how many questions were waiting for me after my vacation!) But without data I can't make any assurances of safety.
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