A female patient tells the nurse that she would like to begin taking St. John's Wort for
depression. What teaching should the nurse provide?
1. "St. John's wort should be taken several hours after your other antidepressant."
2. "St. John's wort has generally been shown to be effective in treating depression."
3. "This supplement is safe to take if you are pregnant."
4. "St. John's wort is regulated by the FDA, so you can be assured of its safety."