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 25, 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
Griffonia simplicifolia is a perennial shrub native to West and Central Africa. The plant has small, white flowers and dark green leaves, and it produces long, thin pods containing shiny, black seeds. The seeds of Griffonia simplicifolia are used in herbal medicine as a natural source of 5-HTP (5-hydroxytryptophan), a precursor of the neurotransmitter serotonin. The seed contains approximately 6% to 10% 5-HTP.
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.
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Dr. Brian Staiger, PharmD
In addition to being a clinical pharmacist specializing in pharmacotherapy, Dr. Brian Staiger is a registered herbalist through the American Herbalist Guild. He has combined his passion for pharmacy practice with the study of medical ethnobotany to improve patient care. Feel free to reach out about any of your herbal or medication questions!
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