Warning: St. John's Wort
7 Replies
Nica - February 8

I just want to pass on a warning to any guys out there who are taking St. John's Wort. This is a herb (available in tablet form) that some people take for depression. However, a side effect of it is that **IT CAUSES LOW SPERM MOTILITY***. Once we found this out my husband went off it. Six months later he took another sperm test and his motility had increased. I don't know how long it stays in the system, but I just wanted to warn people out there who are trying to conceive, not to take it!


zoyee - June 19

I had gone for cryo preservation of the eggs about six months ago while on prescription anitdepressant (lexapro a category C and also known to decrease fertility at higher doses in experiments in labs... from their info insert). I succesfully froze 8 eggs. Wanted to go for another cycle of egg freezing this past month... was stimulated but was not able to get more than 2 eggs after the stimulation hormonee thrapy, a marked decrease in fertility. After the first cycle of egg freezing I had gotten off the Lexapro and was on St. John's Wart for the past 4 months.... My doctor and I had been shocked and upset by my performance at my recent cryo egg freezing cycle not to mention the cost of it!!! And I decided to do some research as to what was different from six months before to now and St. John's Wart was the only different thing I was taking!!!! (And I thought it was herbal... no side effects!!!)
Would love to hear from you if you have had any such experiences relating to infertility and St. John's Wart.........


Nica - June 19

Hi, it's me again. Just because something is herbal doesn't mean it doesn't have side effects - just consider all the people allergic to natural foods such as peanuts...

Anyway, keep off the St. John's Wort - I can't remember where I first found out about this problem with St. John's, but my husband went off it straightaway once we found out, and we later got pregnant.


zoyee - June 19

I am coming off of the St. John's Wart ( do you think it should be gradual?) and I will let you know how I do on my retry of the next cryo egg cycle... without the St. John's Wart... (infact herbal medicines sometimes are not thouroughly tested...).


Nica - June 19

Hi zoyee, I'm not sure if it should be gradual or not. My husband stopped cold turkey and he was fine so I don't think it would hurt you.


Drew - June 20

Hi all, I worked in a naturopathic store for years, and had alot of complaints about this very problem. The best thing to do is get off it straight away, the sooner the better. You don't have to wean yourself off it. For the men who have taken it, zinc helps their little swimmers bounce back faster. It's good for women too! Good luck, hope this helps!


zoyee - July 2

How long does St. John's wart stay in the system??? After how long should I retry cryo egg freezing /pregnancy ???


justmcm - September 11

Hello all, I know this is an old post but I was just wondering if any of you could send an update - I have been taking SJW for the past 5 months and I have just seen this post. Coincidence or not I have just had the worst AMH and FSH results ever and I was wondering if (apart from the ageing factor) SJW had anything to do with it. Zoyee, did you have any problems stopping SJW cold turkey? Did you retry cryo egg freezing?



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