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Date of last update: 10/16/2017.

Forum Name: Fertility

Question: How quickly does st john's wort effect implanon?

 young lady - Thu Jul 23, 2009 7:09 am

Hi I have just discovered that st John's wort can decrease the effectiveness of implanon and i'm slightly concerned. I've had my implant in for 2 1/2 years its due out in feb next year and so far no pregnacies. However recently I found myself getting very depressed around the date of my period to the point where it was starting to have impact on my relationship. I didn't want to tell the doctor because I don't want my medical records to say that I suffered from depression so I started taking st john's wort. I assumed that because it's a herbal remedy and available over the counter that it wouldn't have any side effects. I had been taking it for about a month when my mum came to visit me, (she's a nurse) she saw the st john's wort in the bathroom and told me that I shouldn't be taking it because it can cause implanon to stop working properly. I have looked around on web for more info and found out that she was right but I can't find any info on how long you have to have been taking it for it to effect implanon, and advice would be good. Thank you.
 Debbie Miller, RN - Sat Aug 08, 2009 9:41 pm

User avatar Hello,
The reason you cannot find this information is because it really is not known. Extensive testing has not been performed in this. Herbal supplements definitely have side effects. Just because it is available without prescription does not mean it is not potent medication. It just is not regulated by the FDA and other agencies because it is a supplement; not a drug per se. Be careful whenever you take any kind of medication.

If you have symptoms of depression, discuss this with your doctor. There are also some other remedies such as increased exercise and daily sunlight that raises your serotonin levels safely.
I would recommend a book, When Your Body Gets the Blues, by Marie-Annette Brown and Jo Robinson.

Best wishes.

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