Stress Relief Complex Ingredients & Drug Interactions
by Shaklee
What is this page for?
First and foremost: checking Stress Relief Complex against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
Stress Relief Complex is a dietary supplement by Shaklee with 4 active ingredients. Its ingredients are commonly taken for anxiety and stress, relaxation and calm, sleep support.Based on those ingredients, 1,377 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Ashwagandha root extract, L-Theanine, L-Tyrosine. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against Stress Relief Complex by Shaklee
Ask about any prescription or over-the-counter medication and we check it for interactions with Stress Relief Complex by Shaklee — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
Ask the Pharmacist
A licensed pharmacist will answer your question by email — free, usually within 24 hours.
Got it — thank you!
A licensed pharmacist will answer within 24 hours. Keep an eye on your email (worth checking spam, just in case).
HelloPharmacist Scorecard of Stress Relief Complex by Shaklee
Four independent checks of what is known — a summary of the available information, not a grade of the product itself.
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
The stated purpose hasn't been mapped to our evidence data yet.
Why this rating?
- We haven't mapped this product's purpose to our evidence data yet — it'll be graded on the next content refresh.
Every active ingredient lists its own amount on the label.
Why this rating?
- The label discloses an exact amount for 4 of its 4 active ingredients.
- No proprietary blends here — you can verify the dose of every single component.
The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.
Why this rating?
- 3 of the 4 matched ingredients can interact with medications — Ashwagandha, Tyrosine, Theanine.
- The most serious interaction on file is rated Moderate.
- Some involve high-stakes drug classes: immunosuppressants / transplant drugs; diabetes medications; Parkinson's medications.
- For scale: 1,378 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.
Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.
Why this rating?
- We hold adverse-effect (side-effect) data for 4 of the 4 matched ingredients.
- Pregnancy & breastfeeding safety ratings cover 4 of 4.
- General safety write-ups exist for 4 of 4.
- Remember: this measures how much safety information exists. Thin data is not the same as being safe.
HelloPharmacist summaryFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.
Assessment coverage: 4 of 4 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 25, 2012.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about Stress Relief Complex, straight from the product label.
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for Stress Relief Complex by Shaklee, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| L-Theanine | 100 mg | -- |
| Ashwagandha root extract | 100 mg | -- |
| Beta Sitosterol | 60 mg | -- |
| L-Tyrosine | 100 mg | -- |
Other ingredients: Dicalcium Phosphate, Croscarmellose Sodium
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
FDA Statement of Identity
Dietary Supplement
Suggested/Recommended/Usage/Directions
DIRECTIONS: Take 1 caplet daily.
Precautions
Caution: Not recommended for use by children.
If pregnant or nursing, consult your physician prior to use.
FDA Disclaimer Statement
*THESE STATEMENTS HAVE NOT BEEN EVALUATED BY THE FOOD & DRUG ADMINISTRATION. THIS PRODUCT IS NOT INTENDED TO DIAGNOSE, TREAT, CURE, OR PREVENT ANY DISEASE.
General Statements
Helps Relieve Tension & Stress*
L-THEANINE, ASHWAGANDHA, BETA SITOSTEROL, & L-TYROSINE
MIND & SPIRIT
Promotes a Tranquil State of Mind*
Shaklee Stress Relief Complex helps relax the body & mind and promotes alertness while enhancing the body's ability to adapt to stress.* This blend of natural ingredients also helps blunt cortisol--a hormone produced during stress that affects long-term health.*
General
NG375B Item #20656
Formulation
Gluten free.
No artificial flavors, sweeteners, colors, or preservatives added.
Seals/Symbols
100% SHAKLEE GUARANTEE
K
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
Stress Relief Complex by Shaklee label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in Stress Relief Complex by Shaklee
These are the 4 active ingredients this product is made of. Select any to open its full monograph.
Serving size1 Caplet(s) Dosage formUnknown Amounts shown are per serving.
Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.
L-Theanine
Interacts with565 drugs
Theanine (usually L-theanine) is an amino acid found naturally in tea leaves that many people take to feel calmer and less stressed without strong dro...
L-Theanine monograph & interactionsAshwagandha root extract
Interacts with1,372 drugs
Ashwagandha is an Ayurvedic herb most often taken to help with stress, anxiety, and sleep, and some small studies suggest it may help, though the evid...
Ashwagandha root extract monograph & interactionsBeta Sitosterol
No knowninteractions
Beta-sitosterol is a plant sterol that may modestly lower LDL ('bad') cholesterol and may help ease urinary symptoms from an enlarged prostate. Eviden...
Beta Sitosterol monograph & interactionsL-Tyrosine
Interacts with21 drugs
L-tyrosine is an amino acid your body uses to make brain chemicals like dopamine and norepinephrine. Some studies suggest it may help mental performan...
L-Tyrosine monograph & interactionsOther (inactive) ingredients: Dicalcium Phosphate, Croscarmellose Sodium. These complete the product’s ingredient list but are not active constituents.
Stress Relief Complex by Shaklee Drug Interactions
Stress Relief Complex contains 4 ingredients, and 3 of them have known drug interactions. Altogether they interact with 1,377 medications. Here’s the picture, then you can look up your own drug.
Want to check YOUR meds against Stress Relief Complex?
Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.
Go to the checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in Stress Relief Complex interact with 1,377 drugs. Click any drug to see the details.
3 of the 4 ingredients in Stress Relief Complex interact with drugs. Each result below shows which ingredient is responsible. Ashwagandha root extract L-Theanine L-Tyrosine
Ado-trastuzumab EmtansineKadcyla
How Ado-trastuzumab Emtansine interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Ado-trastuzumab Emtansine interactionAbemaciclibVerzenio
How Abemaciclib interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Abemaciclib interactionAcalabrutinibCalquence
How Acalabrutinib interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Acalabrutinib interactionAgomelatineValdoxan
How Agomelatine interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Agomelatine interactionAlfuzosinUroxatral
How Alfuzosin interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Alfuzosin interactionAlmotriptanAlmogran, Axert
How Almotriptan interacts with Stress Relief Complex — through 2 ingredients. Tap an ingredient for the detail:
L-theanineSerotonergic Drugs Minor
Interaction Summary
Clinical studies regarding the effects of L-theanine on serotonin levels are conflicting.
Read the full L-theanine + Almotriptan interactionAshwagandha Root ExtractSerotonergic Drugs, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Some animal studies have reported that ashwagandha can enhance serotonergic transmission by altering certain serotonin (5-HT) receptors.
Read the full Ashwagandha Root Extract + Almotriptan interactionAlosetronLotronex
How Alosetron interacts with Stress Relief Complex — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractSerotonergic Drugs Minor
Interaction Summary
Some animal studies have reported that ashwagandha can enhance serotonergic transmission by altering certain serotonin (5-HT) receptors.
Read the full Ashwagandha Root Extract + Alosetron interactionL-theanineSerotonergic Drugs Minor
Interaction Summary
Clinical studies regarding the effects of L-theanine on serotonin levels are conflicting.
Read the full L-theanine + Alosetron interactionAlpelisibPiqray
How Alpelisib interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Alpelisib interactionAmoxapineAsendin
How Amoxapine interacts with Stress Relief Complex — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractSerotonergic Drugs Minor
Interaction Summary
Some animal studies have reported that ashwagandha can enhance serotonergic transmission by altering certain serotonin (5-HT) receptors.
Read the full Ashwagandha Root Extract + Amoxapine interactionL-theanineSerotonergic Drugs Minor
Interaction Summary
Clinical studies regarding the effects of L-theanine on serotonin levels are conflicting.
Read the full L-theanine + Amoxapine interactionAmphetamine Aspartate, Amphetamine Sulfate, Dextroamphetamine Saccharate, Dextroamphetamine SulfateAdderall, Adderall XR
How Amphetamine Aspartate, Amphetamine Sulfate, Dextroamphetamine Saccharate, Dextroamphetamine Sulfate interacts with Stress Relief Complex — through 2 ingredients. Tap an ingredient for the detail:
L-theanineSerotonergic Drugs Minor
Interaction Summary
Clinical studies regarding the effects of L-theanine on serotonin levels are conflicting.
Read the full L-theanine + Amphetamine Aspartate, Amphetamine Sulfate, Dextroamphetamine Saccharate, Dextroamphetamine Sulfate interactionAshwagandha Root ExtractSerotonergic Drugs Minor
Interaction Summary
Some animal studies have reported that ashwagandha can enhance serotonergic transmission by altering certain serotonin (5-HT) receptors.
Read the full Ashwagandha Root Extract + Amphetamine Aspartate, Amphetamine Sulfate, Dextroamphetamine Saccharate, Dextroamphetamine Sulfate interactionAmprenavirAgenerase
How Amprenavir interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Amprenavir interactionAnagrelideAgrylin
How Anagrelide interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Anagrelide interactionApalutamideErleada
How Apalutamide interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Apalutamide interactionApixabanEliquis
How Apixaban interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Apixaban interactionApremilastOtezla
How Apremilast interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Apremilast interactionAprepitantCinvanti, Emend
How Aprepitant interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Aprepitant interactionArmodafinilNuvigil
How Armodafinil interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Armodafinil interactionAsenapineSaphris, Secuado
How Asenapine interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Asenapine interactionAspirin, Butalbital, CaffeineFiorinal
How Aspirin, Butalbital, Caffeine interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Aspirin, Butalbital, Caffeine interactionAspirin, Butalbital, Caffeine, PhenacetinMarnal
How Aspirin, Butalbital, Caffeine, Phenacetin interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Aspirin, Butalbital, Caffeine, Phenacetin interactionAspirin, CaffeineAnacin
How Aspirin, Caffeine interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Aspirin, Caffeine interactionAspirin, Caffeine, Dover's PwdAcedoval, Dovacet
How Aspirin, Caffeine, Dover's Pwd interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Aspirin, Caffeine, Dover's Pwd interactionAspirin, Caffeine, Isobutylallylbarbituric Acid, PhenacetinLanorinal
How Aspirin, Caffeine, Isobutylallylbarbituric Acid, Phenacetin interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Cytochrome P450 1a2 (cyp1a2) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Aspirin, Caffeine, Isobutylallylbarbituric Acid, Phenacetin interactionAspirin, Caffeine, OrphenadrineInvagesic, Invagesic Forte, Norgesic, Norgesic Forte, Orphengesic, Orphengesic Forte
How Aspirin, Caffeine, Orphenadrine interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 1a2 (cyp1a2) Substrates, Cytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
Read the full Ashwagandha Root Extract + Aspirin, Caffeine, Orphenadrine interactionAspirin, Chlorpheniramine, PhenylpropanolamineAlka-Seltzer Plus Cold
How Aspirin, Chlorpheniramine, Phenylpropanolamine interacts with Stress Relief Complex — through 2 ingredients. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates, Serotonergic Drugs Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Aspirin, Chlorpheniramine, Phenylpropanolamine interactionL-theanineSerotonergic Drugs Minor
Interaction Summary
Clinical studies regarding the effects of L-theanine on serotonin levels are conflicting.
Read the full L-theanine + Aspirin, Chlorpheniramine, Phenylpropanolamine interactionAspirin, OmeprazoleYosprala
How Aspirin, Omeprazole interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Aspirin, Omeprazole interactionAtazanavirReyataz
How Atazanavir interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Atazanavir interactionAtazanavir, CobicistatEvotaz
How Atazanavir, Cobicistat interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Atazanavir, Cobicistat interactionAtogepantQulipta
How Atogepant interacts with Stress Relief Complex — through 1 ingredient. Tap an ingredient for the detail:
Ashwagandha Root ExtractCytochrome P450 3a4 (cyp3a4) Substrates Minor
Interaction Summary
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
Read the full Ashwagandha Root Extract + Atogepant interactionAtropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, PhenylAtrosept
How Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl interacts with Stress Relief Complex — through 2 ingredients. Tap an ingredient for the detail:
L-theanineSerotonergic Drugs Minor
Interaction Summary
Clinical studies regarding the effects of L-theanine on serotonin levels are conflicting.
Read the full L-theanine + Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl interactionAshwagandha Root ExtractSerotonergic Drugs Minor
Interaction Summary
Some animal studies have reported that ashwagandha can enhance serotonergic transmission by altering certain serotonin (5-HT) receptors.
Read the full Ashwagandha Root Extract + Atropine, Benzoic Acid, Hyoscyamine, Methenamine, Methylene Blue, Phenyl interactionEach ingredient & the kinds of drugs it affects
For each ingredient in Stress Relief Complex with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.
Ashwagandha root extract
Antidiabetes Drugs
Theoretically, taking ashwagandha with antidiabetes drugs might increase the risk of hypoglycemia.
There is preliminary clinical evidence suggesting that ashwagandha might lower blood glucose levels. Theoretically, ashwagandha might have additive effects when used with antidiabetes drugs and increase the risk of hypoglycemia.
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.
Benzodiazepines
Theoretically, taking ashwagandha might increase the sedative effects of benzodiazepines.
There is preliminary evidence that ashwagandha might have an additive effect with diazepam (Valium) and clonazepam (Klonopin). This may also occur with other benzodiazepines.
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.
Hepatotoxic Drugs
Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.
Ashwagandha has been linked to cases of acute hepatitis, liver failure, hepatic encephalopathy, autoimmune hepatitis, the need for liver transplantation, and death due to liver failure.
Immunosuppressants
Theoretically, taking ashwagandha might decrease the effects of immunosuppressants.
Ashwagandha has demonstrated immunostimulant effects in humans. Animal research has shown that ashwagandha can attenuate the immunosuppression caused by cyclophosphamide.
Thyroid Hormone
Ashwagandha might increase the effects and adverse effects of thyroid hormone.
Concomitant use of ashwagandha with thyroid hormones may cause additive therapeutic and adverse effects. Preliminary clinical research and animal studies suggest that ashwagandha boosts thyroid hormone synthesis and secretion. In one clinical study, ashwagandha increased triiodothyronine (T3) and thyroxine (T4) levels by 41.5% and 19.6%, respectively, and reduced serum TSH levels by 17.4% from baseline in adults with subclinical hypothyroidism.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.
In vitro research shows that ashwagandha extract induces CYP1A2 enzymes.
Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.
In vitro research shows that ashwagandha extract induces CYP3A4 enzymes.
Serotonergic Drugs
Some animal studies have reported that ashwagandha can enhance serotonergic transmission by altering certain serotonin (5-HT) receptors. However, there is no evidence to suggest that ashwagandha increases the risk of serotonin-related effects, and there have been no published case reports of serotonin syndrome when combined with other serotonergic drugs. Nevertheless, due to the lack of extensive studies on the matter and the fact that ashwagandha appears to affect serotonergic pathways, it would be prudent to exercise caution when combining it with drugs that affect serotonin. [References: - Effects of Withania somnifera (Ashwaga ndha) on Stress and the Stress-Related Neuropsychiatric Disorders Anxiety, Depression, and Insomnia. Curr Neuropharmacol. 2021 Sep 14; 19: 1468–1495. - A Prospective, Randomized Double-Blind, Placebo-Controlled Study of Safety and Efficacy of a High-Concentration Full-Spectrum Extract of Ashwagandha Root in Reducing Stress and Anxiety in Adults. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3573577/]
L-Theanine
Antihypertensive Drugs
Theanine might lower blood pressure, potentiating the effects of antihypertensive drugs.
Animal research shows that theanine can lower blood pressure in spontaneously hypertensive animals. Theoretically, concomitant use of theanine and antihypertensive drugs might potentiate the antihypertensive activity.
Cns Depressants
Theoretically, theanine might have additive sedative effects when used in conjunction with CNS depressants. However, it is unclear if this concern is clinically relevant.
Theoretically, theanine may compete with glutamate and/or increase plasma gamma-aminobutyric acid (GABA) levels, which could cause CNS depression. In one clinical study, some subjects taking oral theanine reported drowsiness.
Serotonergic Drugs
Clinical studies regarding the effects of L-theanine on serotonin levels are conflicting. Some studies suggest it can increase serotonin levels in the brain while others report that it may decrease them. Nevertheless, there have been no reports of l-theanine being a causative agent in serotonergic-related side effects or serotonin syndrome.
L-Tyrosine
Levodopa
Theoretically, tyrosine might decrease the effectiveness of levodopa.
Tyrosine and levodopa compete for absorption in the proximal duodenum by the large neutral amino acid (LNAA) transport system. Advise patients to separate doses of tyrosine and levodopa by at least 2 hours.
Thyroid Hormone
Theoretically, tyrosine might have additive effects with thyroid hormone medications.
Tyrosine is a precursor to thyroxine and might increase levels of thyroid hormones.
Brand information
Manufacturer and brand details for Stress Relief Complex, from the product label.
Shaklee
See all Shaklee products- Name
- Shaklee Corporation
- Street Address
- 4747 Willow Road
- City
- Pleasanton
- State
- CA
- ZipCode
- 94588
Stress Relief Complex by Shaklee: Common Questions
Does Stress Relief Complex by Shaklee interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if Stress Relief Complex is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind Stress Relief Complex’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Theanine
Interacts with 565 drugsTheanine (usually L-theanine) is an amino acid found naturally in tea leaves that many people take to feel calmer and less stressed without strong drowsiness. Early research suggests it may...
Read the full Theanine monograph → Herb & supplement monographAshwagandha
Interacts with 1,372 drugsAshwagandha is an Ayurvedic herb most often taken to help with stress, anxiety, and sleep, and some small studies suggest it may help, though the evidence is still limited. It is generally w...
Read the full Ashwagandha monograph → Herb & supplement monographBeta-sitosterol
Beta-sitosterol is a plant sterol that may modestly lower LDL ('bad') cholesterol and may help ease urinary symptoms from an enlarged prostate. Evidence is moderate for these uses and weaker...
Read the full Beta-sitosterol monograph → Herb & supplement monographTyrosine
Interacts with 21 drugsL-tyrosine is an amino acid your body uses to make brain chemicals like dopamine and norepinephrine. Some studies suggest it may help mental performance during short-term stress, sleep loss,...
Read the full Tyrosine monograph →Sources & How We Checked
Stress Relief Complex's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 49 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Theanine 6 references
- Yokogoshi H, Kobayashi M. Hypotensive effect of gamma-glutamylethylamide in spontaneously hypertensive rats. Life Sci 1998;62:1065-8.
- Haskell, C. F., Kennedy, D. O., Milne, A. L., Wesnes, K. A., and Scholey, A. B. The effects of L-theanine, caffeine and their combination on cognition and mood. Biol.Psychol. 2008;77(2):113-122. PubMed
- Yokogoshi, H., Kato, Y., Sagesaka, Y. M., Takihara-Matsuura, T., Kakuda, T., and Takeuchi, N. Reduction effect of theanine on blood pressure and brain 5-hydroxyindoles in spontaneously hypertensive rats. Biosci.Biotechnol.Biochem. 1995;59(4):615-618. PubMed
- Lyon MR, Kapoor MP, Juneja LR. The effects of L-theanine (Suntheanine®) on objective sleep quality in boys with attention deficit hyperactivity disorder (ADHD): a randomized, double-blind, placebo-controlled clinical trial. Altern Med Rev. 2011;16(4):348-
- Hidese S, Ota M, Wakabayashi C, et al. Effects of chronic l-theanine administration in patients with major depressive disorder: an open-label study. Acta Neuropsychiatr 2017;29(2):72-9.
- Tsuchiya T, Honda H, Oikawa M, et al. Oral administration of the amino acids cystine and theanine attenuates the adverse events of S-1 adjuvant chemotherapy in gastrointestinal cancer patients. Int J Clin Oncol 2016;21(6):1085-90. PubMed
Ashwagandha 32 references
- McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, LLC 1997.
- Upton R, ed. Ashwagandha Root (Withania somnifera): Analytical, quality control, and therapuetic monograph. Santa Cruz, CA: American Herbal Pharmacopoeia 2000:1-25.
- Davis L, Kuttan G. Effect of Withania somnifera on cyclophosphamide-induced urotoxicity. Cancer Lett 2000;148:9-17. PubMed
- Davis L, Kuttan G. Suppressive effect of cyclophosphamide-induced toxicity by Withania somnifera extract in mice. J Ethnopharmacol 1998;62:209-14. PubMed
- Mishra LC, Singh BB, Dagenais S. Scientific basis for the therapeutic use of Withania somnifera (ashwagandha): a review. Altern Med Rev 2000;5:334-46. DOI
- Andallu B, Radhika B. Hypoglycemic, diuretic and hypocholesterolemic effect of winter cherry (Withania somnifera, Dunal) root. Indian J Exp Biol 2000;38:607-9.
- Kulkarni RR, Patki PS, Jog VP, et al. Treatment of osteoarthritis with a herbomineral formulation: a double-blind, placebo-controlled, cross-over study. J Ethnopharmacol 1991;33:91-5. PubMed
- 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.
- Panda S, Kar A. Withania somnifera and Bauhinia purpurea in the regulation of circulating thyroid hormone concentrations in female mice. J Ethnopharmacol 1999;67:233-39. PubMed
- Panda S, Kar A. Changes in thyroid hormone concentrations after administration of ashwagandha root extract to adult male mice. J Pharm Pharmacol 1998;50:1065-68. PubMed
- Sehgal, V. N., Verma, P., and Bhattacharya, S. N. Fixed-drug eruption caused by ashwagandha (Withania somnifera): a widely used Ayurvedic drug. Skinmed. 2012;10(1):48-49.
- Agnihotri AP, Sontakke SD, Thawani VR, Saoji A, Goswami VS. Effects of Withania somnifera in patients of schizophrenia: a randomized, double blind, placebo controlled pilot trial study. Indian J Pharmacol. 2013;45(4):417-8. PubMed
- Biswal BM, Sulaiman SA, Ismail HC, Zakaria H, Musa KI. Effect of Withania somnifera (Ashwagandha) on the development of chemotherapy-induced fatigue and quality of life in breast cancer patients. Integr Cancer Ther. 2013;12(4):312-22.
- Sharma AK, Basu I, Singh S. Efficacy and safety of Ashwagandha root extract in subclinical hypothyroid patients: a double-blind, randomized placebo-controlled trial. J Altern Complement Med. 2018 Mar;24(3):243-248. PubMed
- Durg S, Bavage S, Shivaram SB. Withania somnifera (Indian ginseng) in diabetes mellitus: A systematic review and meta-analysis of scientific evidence from experimental research to clinical application. Phytother Res. 2020;34(5):1041-1059.
- Björnsson HK, Björnsson ES, Avula B, et al. Ashwagandha-induced liver injury: A case series from Iceland and the US Drug-Induced Liver Injury Network. Liver Int. 2020;40(4):825-829. PubMed
- Tharakan A, Shukla H, Benny IR, Tharakan M, George L, Koshy S. Immunomodulatory Effect of Withania somnifera (Ashwagandha) Extract-A Randomized, Double-Blind, Placebo Controlled Trial with an Open Label Extension on Healthy Participants. J Clin Med 2021;1 PubMed
- Ireland PJ, Hardy T, Burt AD, Donnelly MC. Drug-induced hepatocellular injury due to herbal supplement ashwagandha. J R Coll Physicians Edinb. 2021;51(4):363-365. PubMed
- Kamal HI, Patel K, Brdak A, Heffernan J, Ahmad N. Ashwagandha as a unique cause of thyrotoxicosis presenting with supraventricular tachycardia. Cureus. 2022 Mar 25;14(3):e23494. PubMed
- Suryawanshi G, Abdallah M, Thomson M, Desai N, Chauhan A, Lim N. Ashwagandha-Associated Acute Liver Failure Requiring Liver Transplantation. Am J Ther 2023;30(1):e80-e83. PubMed
- Pusec CM, Wolsky R, Llerena C, Sura P. A Case of Supplement-Induced Hepatitis. Cureus 2022;14(10):e30433. PubMed
- Ajgaonkar A, Jain M, Debnath K. Efficacy and Safety of Ashwagandha (Withania somnifera) Root Extract for Improvement of Sexual Health in Healthy Women: A Prospective, Randomized, Placebo-Controlled Study. Cureus 2022;14(10):e30787. PubMed
- Haron MH, Dale O, Martin K, et al. Evaluation of the Herb-Drug Interaction Potential of Commonly Used Botanicals on the US Market with Regard to PXR- and AhR-Mediated Influences on CYP3A4 and CYP1A2. J Diet Suppl 2022. PubMed
- Lubarska M, Halasinski P, Hryhorowicz S, et al. Liver Dangers of Herbal Products: A Case Report of Ashwagandha-Induced Liver Injury. Int J Environ Res Public Health 2023;20(5):3921. PubMed
- Tóth M, Benedek AE, Longerich T, Seitz HK. Ashwagandha-induced acute liver injury: A case report. Clin Case Rep 2023;11(3):e7078.
- Bokan G, Glamocanin T, Mavija Z, et al. Herb-Induced Liver Injury by Ayurvedic Ashwagandha as Assessed for Causality by the Updated RUCAM: An Emerging Cause. Pharmaceuticals (Basel) 2023;16(8):1129. PubMed
- Patel PA, Sanborn E, Then R, Williams DM. Recurrent Reversible Cerebral Vasoconstriction Syndrome: A Report of Two Cases. Cureus 2023;15(8):e42992. PubMed
- Majeed M, Nagabhushanam K, Murali A, Vishwanathan DT, Mamidala RV, Mundkur L. A Standardized Withania somniferra (Linn.) Root Extract with Piperine Alleviates the Symptoms of Anxiety and Depression by Increasing Serotonin Levels: A Double-Blind, Randomize
- Philips CA, Valsan A, Theruvath AH, et al. Ashwagandha-induced liver injury-A case series from India and literature review. Hepatol Commun 2023;7(10):e0270. PubMed
- Hayashi M, Hamada H, Azuma SI, Hayashi K. Painless Thyroiditis by Withania somnifera (Ashwagandha). Cureus 2024;16(3):e55352. PubMed
- Vazirani S, Kothari A, Fujimoto J, Gomez M. Supplements Are Not a Synonym for Safe: Suspected Liver Injury From Ashwagandha. Fed Pract 2023;40(9):315-319. PubMed
- Patel M, Newell R, Hillier M, Ramalingam R. Herbal remedies as a potential cause of hypoadrenalism. Br J Hosp Med (Lond) 2024;85(6):1-4. PubMed
Beta-sitosterol 7 references
- Berges RR, Windeler J, Trampisch HJ, et al. Randomised, placebo-controlled, double-blind clinical trial of beta-sitosterol in patients with benign prostatic hyperplasia. Beta-sitosterol Study Group. Lancet 1995;345:1529-32.
- Klippel KF, Hiltl DM, Schipp B. A multicentric, placebo-controlled, double-blind clinical trial of beta-sitosterol (phytosterol) for the treatment of benign prostatic hyperplasia. Br J Urol 1997;80:427-32.
- Wilt TJ, MacDonald R, Ishani A. beta-sitosterol for the treatment of benign prostatic hyperplasia: a systematic review. BJU Int 1999;83:976-83. PubMed
- Oster P, Schlierf G, Heuck CC, et al. [Sitosterol in familial hyperlipoproteinemia type II. A randomized, double-blind, cross-over study]. Dtsch Med Wochenschr 1976;101:1308-11.
- Becker M, Staab D, Von Bergman K. Long-term treatment of severe familial hypercholesterolemia in children: effect of sitosterol and bezafibrate. Pediatrics 1992;89:138-42. DOI
- Prager N, Bickett K, French N, Marcovici G. A randomized, double-blind, placebo-controlled trial to determine the effectiveness of botanically derived inhibitors of 5-alpha-reductase in the treatment of androgenetic alopecia. J Altern Complement Med 2002
- Lorenze A, Hsueh W, Nasr J. Beta-sitosterol-induced acute pancreatitis: A case report and review of the literature. Cureus. 2020;12(3):e7407. PubMed
Tyrosine 4 references
- Meyer JS, Welch KM, Deshmukh VD, et al. Neurotransmitter precursor amino acids in the treatment of multi-infarct dementia and Alzheimer's disease. J Amer Geriat Soc 1977;25:289-98.
- DiPiro JT, Talbert RL, Yee GC, et al; eds. Pharmacotherapy: A pathophysiologic approach. 4th ed. Stamford, CT: Appleton & Lange, 1999.
- Wood DR, Reimherr FW, Wender PH. Amino acid precursors for the treatment of attention deficit disorder, residual type. Psychopharmacol Bull 1985;21:146-9.
- van Spronsen FJ, van Rijn M, Bekhof J. Phenylketonuria: tyrosine supplementation in phenylalanine-restricted diets. Am J Clin Nutr 2001;73:153-7. PubMed
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