Ashwagandha - Acetazolamide 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: Acetazolamide
Brand names:
Diamox, Ak-Zol

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
Jun 15, 2025
Interaction Details
Acetazolamide is classified as belonging to the following category: Cns Depressants
Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.
Ashwagandha seems to have sedative effects. Theoretically, this may potentiate the effects of barbiturates, other sedatives, and anxiolytics.
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
Pharmacist Analysis
Ashwagandha is a widely used herbal ingredient and is found in many dietary supplements. It is commonly used for a variety of conditions, including for its purported ability to improve sleep and reduce stress.
Some preliminary research has shown that ashwagandha has mild sedative effects, and can help to alleviate stress and anxiety via several mechanisms, such as the modulation of certain neurotransmitters, including serotonin and GABA. It may also have an effect on dopamine in the brain but more research is needed to better understand how ashwagandha works and its overall effects.
While ashwagandha may have sedative effects, there is no evidence to suggest that it causes respiratory depression like some other medications that have sedative effects (such as benzodiazepines and opioids).
Caution should always be taken with combining sedative drugs but unlike certain dangerous combinations (e.g., opioids and benzodiazepines) which can affect your breathing, the primary concern with ashwagandha is additive sedation.
References
- Upton R, ed. Ashwagandha Root (Withania somnifera): Analytical, quality control, and therapuetic monograph. Santa Cruz, CA: American Herbal Pharmacopoeia 2000:1-25.
Interaction Details
Acetazolamide is classified as belonging to the following category: Antihypertensive Drugs
Theoretically, taking ashwagandha with antihypertensive drugs might increase the risk of hypotension.
Animal research suggests that ashwagandha might lower systolic and diastolic blood pressure. Theoretically, ashwagandha might have additive effects when used with antihypertensive drugs and increase the risk of hypotension.
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
Pharmacist Analysis
It is unlikely that ashwagandha has a significant risk of causing hypotension (low blood pressure) in most individuals. While clinical studies show that it may have a mild blood-pressure-lowering effect, no studies have reported significant side effects in this regard, or cases of hypotension.
Ashwagandha appears to have more appreciable clinical effects in regard to improving cardiorespiratory fitness and fatigue/recovery versus blood-pressure-lowering effects.
As always, however, be sure to let your doctor know of all the medications you are taking, including dietary supplements, so you can be appropriately monitored.
- Dr. Brian Staiger, PharmDReferences
- Ahumada F, Aspee F, Wikman G, Hancke J. Withania somnifera exract. Its effects on arterial blood pressure in anaesthetized dogs. Phytother Res 1991;5:111-14.
Ashwagandha Overview

Acetazolamide Overview
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Acetazolamide is used to treat glaucoma, a condition in which increased pressure in the eye can lead to gradual loss of vision. Acetazolamide decreases the pressure in the eye. Acetazolamide is also used to reduce the severity and duration of symptoms (upset stomach, headache, shortness of breath, dizziness, drowsiness, and fatigue) of altitude (mountain) sickness. Acetazolamide is used with other medicines to reduce edema (excess fluid retention) and to help control seizures in certain types of epilepsy.
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This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.
Ashwagandha - More Interactions
Ashwagandha interacts with 1327 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.
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Drug descriptions are provided by MedlinePlus.