Griffonia Simplicifolia - Amphetamine Interaction
Herbal: Griffonia Simplicifolia
Also Known As: Bandeiraea simplicifolia
Drug: Amphetamine
Brand names:
Dyanavel XR, Adensys XR-ODT, Mydayis, Adzenys ER

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 04, 2025
Interaction Details
Amphetamine is classified as belonging to the following category: Monoamine Oxidase Inhibitors (Maois)
Theoretically, taking Griffonia simplicifolia seed extract with MAOIs might increase the risk of serotonergic adverse effects, such as serotonin syndrome and cerebral vasoconstrictive disorders such as Call-Fleming syndrome.
Griffonia simplicifolia seed extract contains 5-HTP. Taking 5-HTP with MAOIs increases the risk of serotonergic adverse effects.
Interaction Rating
Likelihood of Occurrence
PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
References
- Singhal AB, Caviness VS, Begleiter AF, et al. Cerebral vasoconstriction and stroke after use of serotonergic drugs. Neurology 2002;58:130-3.
- Pardo JV. Mania following addition of hydroxytryptophan to monoamine oxidase inhibitor. Gen Hosp Psychiatry 2012;34(1):102.e13-4.
- Lemaire PA, Adosraku RK. An HPLC method for the direct assay of the serotonin precursor, 5-hydroxytrophan, in seeds of Griffonia simplicifolia. Phytochem Anal 2002;13(6):333-7.
Griffonia Simplicifolia Overview

Amphetamine Overview
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Amphetamine (Adzenys ER, Adzenys XR, Dyanavel XR, Evekeo, Evekeo ODT, others) is used as part of a treatment program to control symptoms of attention deficit hyperactivity disorder (ADHD; more difficulty focusing, controlling actions, and remaining still or quiet than other people who are the same age) in adults and children. Amphetamine (Evekeo, others) is also used to treat narcolepsy (a sleep disorder that causes excessive daytime sleepiness and sudden attacks of sleep). Amphetamine (Evekeo, others) is also used for a limited period of time (a few weeks) along with a reduced calorie diet and an exercise plan for weight loss in obese people unable to lose weight. Amphetamine is in a class of medications called central nervous system stimulants. It works by changing the amounts of certain natural substances in the brain.
Griffonia Simplicifolia - More Interactions
Griffonia Simplicifolia interacts with 315 drugs
Interaction Rating Key
These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.
Major | The combined use of these agents is strongly discouraged as serious side effects or other negative outcomes could occur. |
Moderate | Use cautiously under the care of a healthcare professional or avoid this combination. A significant interaction or negative outcome could occur. |
Minor | Be aware that there is a chance of an interaction. Watch for warning signs of a potential interaction. |
Unknown | No interactions have been reported or no interaction data is currently available. |
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Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC
Drug descriptions are provided by MedlinePlus.