Acacia Rigidula - Piqray (Alpelisib) Interaction
Herbal: Acacia Rigidula
Also Known As: Vachellia rigidula, Acacia rigidula, Acaciopsis rigidula, Blackbrush, Blackbush, Chaparro Prieto
Drug: Alpelisib
Brand names:
Piqray
Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 18, 2025
Interaction Details
Alpelisib is classified as belonging to the following category: Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, Acacia rigidula products that are adulterated with beta-methylphenylethylamine (BMPEA) might increase the levels of CYP3A4 substrates.
In vitro research shows that BMPEA, an adulterant found in many Acacia rigidula products, inhibits CYP3A4 enzyme by 37%.
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
- Liu Y, Santillo MF. Cytochrome P450 2D6 and 3A4 enzyme inhibition by amine stimulants in dietary supplements. Drug Test Anal. 2016;8(3-4):307-10.
Acacia Rigidula Overview
Acacia rigidula is a species of acacia tree native to Texas and Mexico. The plant is known for its small, bright yellow flowers and its woody, thorny branches.
Acacia rigidula has been traditionally used for medicinal purposes and is available as a dietary supplement marketed for weight loss aid and as a stimulant. It is purported to boost energy, increase metabolism, and aid weight loss.
Studies have found several active compounds in Acacia rigidula, including phenylethylamine (PEA) and its derivatives, which are considered to be stimulants.
Alpelisib Overview
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Alpelisib (Piqray) is used in combination with fulvestrant (Faslodex) to treat a certain type of breast cancer that has spread to nearby tissues or other parts of the body in women who have already gone through menopause (''change of life,'' end of menstrual periods) or in men, whose cancer got worse during or after certain other treatments. Alpelisib (Vijoice) is used to treat adults and children 2 years of age or older who have certain types of PIK3CA Related Overgrowth Spectrum (PROS; a genetic condition that causes overgrowth and abnormalities in certain body tissues). Alpelisib is in a class of medications called kinase inhibitors. It works to treat cancer by blocking the signals that cause cancer cells to multiply, which helps to stop the spread of cancer cells. It works to treast PROS by blocking the signals that cause overgrowth and abnormalities in certain body tissues, which reduces the size of the overgrowths and improves symptoms.
Acacia Rigidula - More Interactions
Acacia Rigidula interacts with 791 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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