Ashwagandha - Zejula (Niraparib Tosylate) Interaction
Herbal: Ashwagandha
Also Known As: Withania somnifera, Ajagandha, Amangura, Asan, Asana, Asgand, Asgandh, Asgandha, Ashagandha, Ashvagandha, Ashwaganda, Ashwanga, Asoda, Asundha, Aswagandha, Avarada, Ayurvedic Ginseng, Cerise d'Hiver, Clustered Wintercherry, Ghoda Asoda
Drug: Niraparib Tosylate
Brand names:
Zejula

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 11, 2025
Interaction Details
There were no interactions found between Niraparib Tosylate and Ashwagandha. This does not mean the potential for an interaction does not exist, however. There is often a lack of studies and data surrounding traditional medicine, especially concerning drug interactions, so it is important to always consult your provider before making any changes to your medication regimen.
Pharmacist Analysis
The use of ashwagandha may result in potential interactions with certain classes of medication due to its known effects. However, these interactions are generally considered to be of minimal clinical significance.
Nevertheless, it is recommended to exercise caution when using ashwagandha in conjunction with the following classes of drugs:
- Antidiabetes
- Antihypertensives
- Benzodiazepines
- CNS Depressants
- Immunosuppressant
- Thyroid Hormones
Although ashwagandha can typically be used safely in combination with these drug classes, it is crucial to inform your healthcare provider of all medications and supplements you are taking to ensure proper monitoring. Based on available information, ashwagandha does not appear to cause any adverse interactions with the specific drug mentioned in this inquiry.
- Dr. Brian Staiger, PharmDAshwagandha Overview

Niraparib Tosylate Overview
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Niraparib is used to help maintain the response of certain types of ovarian (female reproductive organs where eggs are formed), fallopian tube (tube that transports eggs released by the ovaries to the uterus), and peritoneal (layer of tissue that lines the stomach) cancer in people who have completely responded or partially responded to other chemotherapy medication(s). It is also used to treat certain types of ovarian, fallopian tube, or peritoneal cancer when the cancer has gotten worse after 3 or more chemotherapy treatments. Niraparib is in a class of medications called poly (ADP-ribose) polymerase (PARP) inhibitors. It works by killing cancer cells.
Ashwagandha - More Interactions
Ashwagandha interacts with 1326 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.