Amitriptyline With Passionflower - Interaction Details
In our latest question and answer, our pharmacist discusses the combined use of amitriptyline and passionflower.

Question
How safe is it to take both amitriptyline and passionflower?

Answered by Dr. Brian Staiger, PharmD
Medical Content Reviewed By HelloPharmacist
Staff
Last updated Apr 11, 2025
Key points
- Amitriptyline and passionflower both have sedative effects, and taking them together can potentiate these effects, so caution should be taken when using them simultaneously, especially when performing activities that require mental alertness.
Answer
While there is no specific interaction between amitriptyline and passionflower, they both can have sedative effects and these effects can be potentiated when both are used together.
Additional Details
We have this interaction presented in more detail on our dedicated 'amitriptyline - passionflower' interaction page.
Basically, both amitriptyline and passionflower can have sedative effects and those effects can be heightened when both are taken together.
Passionflower contains several that have relaxant properties.
Studies suggest that these compounds bind to specific receptors called GABA(A) and GABA(B) and can increase the amounts of GABA in the brain. GABA is commonly described as a 'inhibitory' neurotranmsittrer, and is associated with sedation and calmness.
The specific compounds in passionflower that have been identified as being responsible for these effects include
- Isovitexin
- Benzoflavone
- Chrysin
- Maltol
Amitriptyline, a prescription medication, has a variety of effects on a number of different neurotransmitters (such as serotonin, norepinephrine, and acetylcholine). It is well known to have sedative effects, especially when first starting the medication.
It's unlikely there is any major interaction between amitriptyline and passionflower to be worried about aside from the additive sedative effects, but that one is certainly good to know about.
You don't want to partake in any activities that require mental alertness, such as driving, when taking the combination for the first time, not knowing how it will affect you.
Final Words
Thanks so much for reaching out and please do so again anytime!
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Dr. Brian Staiger, PharmD
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