The comments below reflect the personal experiences and opinions of readers and do not represent medical advice or the views of this website. The information shared has not been evaluated by the FDA and is not intended to diagnose, treat, or prevent any disease or health condition. Always consult a qualified healthcare professional for medical concerns.
5-HTP Side Effects
Posted by Ann (Louisville, KY) on 09/10/2021
WARNING!
I have been taking 5-HTP with Vitamin B6 (50mg) for the past month and have had serious side effects. I would take one dose in the morning with breakfast and one in the evening when I first started, but invariably would miss the second dose as I would forget to take it with my dinner. I then noticed I was having more diarrhea than normal and researched 5-HTP to find that that was a side effect. So I cut back to only taking 50mg every other day. During the early morning hours of Thursday, September 9th, I had a violent tremor outbreak that was happening over my whole body. It lasted between 45 minutes to an hour and only seemed to release when I would cough hard or yell and the reprieve only lasted a minute or so. I took off work on September 9th because I was wasted after this occurrence and slept the whole day. After returning to work today (Friday, September 10th), I again researched 5-HTP to see if there was any link and there was. Quote from draxe.com "There are some potential side effects to be aware of: indigestion and stomach problems; heartburn; nausea; vomiting; fatigue and drowsiness; sexual dysfunction; and muscular spasms and dysfunction." According to other research, these muscular spasms only happen to a select few (I'm one of the lucky ones).
I only researched 5-HTP, because I knew of no other reason why I would be having this type of tremor episode. I am on blood pressure medication and have been for years without having this type of episode before. So I am truly thinking that it has something to do with the 5-HTP. The weird thing is, I was only taking 50mg doses and just recently those were only taken every other day, so I don't think there was that much of an increase of serotonin in my system. Perhaps it's because the Vitamin B6 caused the 5-HTP to be more effective more quickly. I don't really know. I've given my doctor my observations and wait to see what she says. Just wanted to give everyone a heads up on here as I use earthclinic.com any time I am researching for natural supplements.
5-HTP Side Effects
Posted by Charlotte (Honolulu, Hi) on 02/02/2013
WARNING!
hey everyone who wants to try 5-HTP you should research it first... It's the cause of Eosinophilia Myalgia Syndrome (EMS). I thought I was going to try it until I read about this. The side effects among other things are extreme muscle pain, tremors, and it's a life-long condition. It has also killed people.
5-HTP Side Effects
Posted by Guata (Provo, Ut) on 07/27/2012
BETTER BUT WITH SIDE EFFECTS
I tried 5-HTP, 50 mg. I slept great but woke up with burst blood vessels in my left eye. I tried it a few nights later and the same thing happened: I slept great again but had the burst blood vessels again. I don't dare use it anymore.
5-HTP Side Effects
Posted by Susan (Hamilton, Ontario, Canada) on 02/13/2010
After hearing the great things about 5-HTP, I gave it a whirl for my anxiety and sleeplessness. I reacted very paradoxically to this supplement, as within two hours I was alert and energetic to the point of hyperactivity, also my mood became very agitated and I was extremely cranky with those that I love. The only good thing was that I got through a mountain of housework in a half day because I just could not stop. The effects carried on into the night and I only was able to sleep for an hour at most. Wanting to give this a really good trial, I carried on for about a week but the effects were the same, I hated the way I was feeling, and I finally gave the tablets away.
5-HTP Side Effects
Posted by Violet (Atlanta, Georgia) on 03/29/2008
For Jill--yes 50 mg of 5htp did make me feel anxious, flushed, and a little weird. I now take just 25 mg a day and that makes me sleep much better...the calming effect still feels a little odd to me, but I think this supplement has raised my mood, which was extremely depressed. I would suggest lowering your dose. A lot of info. on the web suggests taking very high dosages a day and I think this may be based on clinical trials, which use a lot of a drug to see the effects quickly. This is not necessarily advisable for everyday folks.
5-HTP Side Effects
Posted by jill (Rochester, UK) on 12/14/2007
I would be interested to know if anyone else has had horrible side effects from taking 5-HTP I get stomach cramps terrible palpitations dizzyness and still feel awful the next day. Am I the only one, everyone I read about seems to think it's the best thing since sliced bread. Help!!
