HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Is there any interactions by taking both st. john wort & l-theanine ?

A doctor has provided 1 answer

No: This should be fine, and many herbal formulations for mood contain both, and more.

Dr Fowler and another doctor agreed

Answered 2/4/2020

3.7k views

Thank

Related Questions

A member asked:

I take 1mg clonazepam 2X a day for anxiety/OCD. It's _almost_ sufficient to keep the anxiety/intrusive thoughts at bay. Could L-Theanine be added for a little extra calming effect? Specifically, are there intereactions between the two?

A doctor has provided 1 answer

A member asked:

I take 25mg atenolol every night. I want to take a supplement called NeuroCalm that contains B6, B12, magnesium, inositol, taurine, chamomile, GABA, L-theanine, 5-HTP, and phosphatidylserine. Would there be any interactions?

A doctor has provided 1 answer

A member asked:

Hi, is there any interactions (is it safe to take?) between food supplements GABA, inositol, quercetine, theanine and Venlafaxine/Effexor? Thanks?

A doctor has provided 1 answer

A member asked:

Why don't I notice a calming difference in l Theanine even after taking up to 600mg?

A doctor has provided 1 answer

A member asked:

It's it safe to combine l theanine and hydrazaline?

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

Any interaction between 200 mg of L-Theanine and Bystolic? I take 2.5 mg Bystolic and 100 mg L-Theanine, with no issues. Would 200 mg be too much?
Interaction between venlafaxine and l-theanine?
Is there any negative interaction between L-theanine and Effexor XR (150mg)?
Hello..Is there any bad interaction between l-theanine and pravastatin(chlostrol lowering medicine).. Thanks in advance?
Hi there I'm on bupropion 150 XL for almost a month and I cant sleep I would like to try L-Theanine at night for sleep Any interaction?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.