Natural Remedy Safety
Medicine interactions, pregnancy, product quality, poisoning and talking with a professional: one safety home for every remedy.
Choose a place to start
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Poisoning & Urgent Help
What to do first if someone may have swallowed, touched or breathed something harmful, and which warning signs need emergency care. Call first.
13 guides
See the 13 pages -
Safety Basics
Why natural does not mean safe, how supplements are regulated and how to judge a safety claim.
9 guides
- Natural Does Not Mean Safe
- How Supplements Are Regulated
- Evaluating Safety Claims
- Explore Natural Remedy Safety
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Medicine & Supplement Interactions
How interactions happen and what sources document by medicine group. No interaction checker.
19 guides
- How Interactions Work
- Interactions by Drug Class
- St. John's Wort Interactions
- Grapefruit & Medication Interactions
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Life Stages
Pregnancy, breastfeeding, trying to conceive, babies, children, teens and older adults.
10 guides
- Pregnancy & Breastfeeding
- Children & Teens
- Older Adults
- Trying to Conceive: Supplements and Herbs to Ask About
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Existing Health Conditions
Liver, kidney, heart, diabetes, cancer treatment, autoimmune, thyroid, mental health, epilepsy and bleeding conditions.
14 guides
- Existing Conditions
- Liver Safety & Supplements
- Kidney Disease and Supplements: Herbs, Minerals and Protein Products
- Heart Disease, High Blood Pressure and Supplements
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Surgery & Procedures
Telling your surgical, anesthesia and dental teams about herbs and supplements.
4 guides
- Supplements Before Surgery
- Which Supplements Surgical Teams Ask About and Why
- Anesthesia and Herbal Supplements: What Anesthesiology Sources Say
- How to Prepare Your Supplement List for a Procedure
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Quality & Contamination
Heavy metals, hidden drugs, adulteration, counterfeit and online products, and recalls.
9 guides
- Product Quality & Contamination
- Unsafe Products & Warnings
- Heavy Metals in Supplements and Herbal Products: What Testing Found
- Hidden Drugs in Supplements: Tainted Weight-Loss, Sexual Enhancement and Muscle Products
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Labels & Amounts
The Supplement Facts panel, amounts, duplicate ingredients and claims.
6 guides
- Reading Supplement Labels
- Amounts & Duplicate Ingredients
- Proprietary Blends: Why a Total Weight Hides the Amounts
- Latin Names, Plant Parts and Extract Ratios on Labels
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Regulation by Country
How supplements and herbal medicines are regulated in the US, EU, UK, Canada, Australia and elsewhere, and banned ingredients.
4 guides
- US Regulation: DSHEA and FDA Oversight of Dietary Supplements
- EU Regulation: Food Supplements, Novel Foods, Health Claims and Traditional Herbal Medicines
- UK, Canada and Australia: How Natural Health Products Are Regulated
- Banned and Restricted Ingredients: Ephedra, Aristolochic Acid, DMAA and Others
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Side Effects & Reporting
What to do if something goes wrong and how to report it in different countries.
4 guides
- Side Effects, Allergic Reactions & Reporting
- How to Report a Side Effect in the US: MedWatch and the Safety Reporting Portal
- How to Report a Side Effect in the UK, Canada, Australia and the EU
- What to Do After a Reaction: Document, Contact a Professional, Keep the Product
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Talking With a Professional
What to bring, what to ask, who to ask and when to see a clinician.
5 guides
- Talking With a Health Professional
- Questions to Ask Your Pharmacist About Herbs and Supplements
- How to Tell Your Doctor You Use Natural Remedies
- When to See a Clinician Instead of Trying a Remedy: Red-Flag Symptoms
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Safety by Remedy Type
Entry points to the safety page for each type of remedy.
4 guides
- Safety by Remedy Type
- Herbs and Botanicals Safety: Start Here
- Essential Oils Safety: Start Here
- Herbal Teas, Extracts and Natural Ingredients Safety: Start Here
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Research & Safety Sources
The official sources used, how to read them and what each is for.
3 guides
- Research & Safety Sources
- How to Use NCCIH, MedlinePlus, LiverTox and LactMed
- Where This Site Could Not Verify Information: A Transparency Note
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Glossary & Quick Reference
Terms, an interaction-risk table, frequently asked questions and an emergency quick reference.
4 guides
- Glossary of Natural Remedy Safety Terms
- Interaction Risk at a Glance: Medicine Groups and Supplements Sources Flag
- Natural Remedy Safety: Frequently Asked Questions
- Emergency Quick Reference: Whom to Call (911, 988, Poison Help)
Search safety topics and A to Z list
108 pages, A to Z
A
- A Child Swallowed a Supplement, Essential Oil or Herbal Product: What to DoPoisoning & Urgent Help
- A Printable Medicine and Supplement List to Bring to AppointmentsTalking With a Professional
- Adulteration, Substitution and Mislabeling of Herbal ProductsQuality & Contamination
- Alcohol Use Disorder and Alcohol-Containing Herbal ProductsExisting Health Conditions
- Allergies, Asthma and Plant Product Cross-ReactionsExisting Health Conditions
- Amounts & Duplicate IngredientsLabels & Amounts
- Anesthesia and Herbal Supplements: What Anesthesiology Sources SaySurgery & Procedures
- Autoimmune Conditions and Immune-Stimulating ProductsExisting Health Conditions
B
- Babies and Infants: Natural Remedies to Ask a Pediatrician AboutLife Stages
- Banned and Restricted Ingredients: Ephedra, Aristolochic Acid, DMAA and OthersRegulation by Country
- Bleeding Disorders and Supplements That Affect ClottingExisting Health Conditions
- Breastfeeding: Herbs and Supplements and How to Read LactMedLife Stages
- Buying Supplements Online: Marketplaces, Counterfeits and Third-Party SellersQuality & Contamination
C
D
E
- Eating Disorders, Weight-Loss Supplements and Laxative MisuseExisting Health Conditions
- Emergency Quick Reference: Whom to Call (911, 988, Poison Help)Glossary & Quick Reference
- Epilepsy and Seizure Risk With Herbs and Essential OilsExisting Health Conditions
- Essential Oils Safety: Start HereSafety by Remedy Type
- EU Regulation: Food Supplements, Novel Foods, Health Claims and Traditional Herbal MedicinesRegulation by Country
- Evaluating Safety ClaimsSafety Basics
- Existing ConditionsExisting Health Conditions
- Explore Natural Remedy SafetySafety Basics
F
G
H
- Heart Disease, High Blood Pressure and SupplementsExisting Health Conditions
- Heavy Metals in Supplements and Herbal Products: What Testing FoundQuality & Contamination
- Herbal Teas, Extracts and Natural Ingredients Safety: Start HereSafety by Remedy Type
- Herbs and Botanicals Safety: Start HereSafety by Remedy Type
- Hidden Drugs in Supplements: Tainted Weight-Loss, Sexual Enhancement and Muscle ProductsQuality & Contamination
- How Interactions WorkMedicine & Supplement Interactions
- How Supplements Are RegulatedSafety Basics
- How the Body Processes Herbs and Supplements: Liver Enzymes and Transporters ExplainedSafety Basics
- How to Check an Interaction Safely: Pharmacists and Official ResourcesMedicine & Supplement Interactions
- How to Prepare Your Supplement List for a ProcedureSurgery & Procedures
- How to Report a Side Effect in the UK, Canada, Australia and the EUSide Effects & Reporting
- How to Report a Side Effect in the US: MedWatch and the Safety Reporting PortalSide Effects & Reporting
- How to Tell Your Doctor You Use Natural RemediesTalking With a Professional
- How to Use NCCIH, MedlinePlus, LiverTox and LactMedResearch & Safety Sources
I
K
L
M
N
- Narrow-Range Medicines and Supplements: Warfarin, Digoxin, Lithium, CyclosporineMedicine & Supplement Interactions
- Natural Cure Claims on Social Media and Online: How to Check ThemSafety Basics
- Natural Does Not Mean SafeSafety Basics
- Natural Remedy Safety: Frequently Asked QuestionsGlossary & Quick Reference
O
P
- Pet & Animal PoisoningPoisoning & Urgent Help
- Plant & Mushroom PoisoningPoisoning & Urgent Help
- Poison Help by CountryPoisoning & Urgent Help
- Poisoning: What to Do FirstPoisoning & Urgent Help
- Pregnancy & BreastfeedingLife Stages
- Pregnancy: Herbs and Supplements Official Sources FlagLife Stages
- Product Quality & ContaminationQuality & Contamination
- Proprietary Blends: Why a Total Weight Hides the AmountsLabels & Amounts
Q
R
S
- Safety by Remedy TypeSafety by Remedy Type
- Serotonin Syndrome and Other Dangerous Medicine-Supplement Reaction SignsPoisoning & Urgent Help
- Severe Allergic Reactions to Natural Products: Warning Signs and Emergency HelpPoisoning & Urgent Help
- Side Effects, Allergic Reactions & ReportingSide Effects & Reporting
- St. John's Wort InteractionsMedicine & Supplement Interactions
- Supplements and Antidepressants: SSRIs, SNRIs and MAOIsMedicine & Supplement Interactions
- Supplements and Birth Control and Hormone MedicinesMedicine & Supplement Interactions
- Supplements and Blood Pressure and Heart MedicinesMedicine & Supplement Interactions
- Supplements and Blood Thinners: Warfarin, Aspirin and Newer AnticoagulantsMedicine & Supplement Interactions
- Supplements and Cancer Treatment: Chemotherapy, Radiation and Targeted DrugsMedicine & Supplement Interactions
- Supplements and Diabetes Medicines: Low Blood Sugar RiskMedicine & Supplement Interactions
- Supplements and HIV, Antiviral and Antibiotic MedicinesMedicine & Supplement Interactions
- Supplements and Immunosuppressants and Transplant MedicinesMedicine & Supplement Interactions
- Supplements and Pain Medicines: NSAIDs, Acetaminophen and OpioidsMedicine & Supplement Interactions
- Supplements and Statins and Cholesterol MedicinesMedicine & Supplement Interactions
- Supplements and Thyroid Medicines: Absorption and Test ResultsMedicine & Supplement Interactions
- Supplements Before SurgerySurgery & Procedures
- Supplements, Sedatives, Sleep Medicines and AlcoholMedicine & Supplement Interactions
T
- Taking Too Much: Overdose With Vitamins, Minerals and HerbsPoisoning & Urgent Help
- Talking With a Health ProfessionalTalking With a Professional
- Teenagers and Young Adults: Bodybuilding, Weight-Loss and Energy ProductsLife Stages
- Third-Party Testing and Certifications: What They Show and Do Not ShowQuality & Contamination
- Thyroid Conditions: Iodine, Biotin and Herbal ProductsExisting Health Conditions
- Trying to Conceive: Supplements and Herbs to Ask AboutLife Stages
U
- UK, Canada and Australia: How Natural Health Products Are RegulatedRegulation by Country
- Unsafe Products & WarningsQuality & Contamination
- Upper Limits and Recommended Intakes: Reading Official Tables (NIH, EFSA, Health Canada)Labels & Amounts
- US Regulation: DSHEA and FDA Oversight of Dietary SupplementsRegulation by Country
W
- What to Do After a Reaction: Document, Contact a Professional, Keep the ProductSide Effects & Reporting
- What to Tell Poison Help When You Call: A Ready ListPoisoning & Urgent Help
- When to Call 911, Poison Help or a Clinician After a Natural ProductPoisoning & Urgent Help
- When to See a Clinician Instead of Trying a Remedy: Red-Flag SymptomsTalking With a Professional
- Where This Site Could Not Verify Information: A Transparency NoteResearch & Safety Sources
- Which Supplements Surgical Teams Ask About and WhySurgery & Procedures
- Who Should Ask First: People at Higher Risk From Natural ProductsSafety Basics
- Why "Natural" Does Not Mean Safe: Real Examples From RegulatorsSafety Basics
If something may be wrong right now
- Call 911 for collapse, a seizure, trouble breathing, or swelling of the face or throat.
- In the US, call Poison Help at 1-800-222-1222 if anyone may have swallowed, touched or breathed something harmful. Do not make the person vomit.
- For a mental health crisis in the US, call or text 988.
- For a medicine question, call a pharmacist. Do not stop a prescribed medicine on your own.
Frequently asked questions
What should I do first if someone may be poisoned?
Call your emergency number if they have collapsed, have a seizure, trouble breathing or cannot be woken; otherwise call poison help (US 1-800-222-1222). Do not make them vomit. [1] See Poisoning: what to do first.
Is natural the same as safe?
No. NIH's example is kava and liver disease. [2] See Natural does not mean safe.
Can herbs interact with my medicines?
Yes; NIH says St. John's wort has been clearly shown to interact with many medicines. [3] See Interactions.
Who should I tell about my supplements?
Every health professional and your pharmacist. [4] See the checklist.
References
- Poison Control (America's Poison Centers). First aid: Act fast! and Need immediate assistance?. Read 2026-10-22. Help line 1-800-222-1222.
- National Center for Complementary and Integrative Health (NIH). Using Dietary Supplements Wisely. Read 2026-10-22.
- National Center for Complementary and Integrative Health (NIH). St. John's Wort: Usefulness and Safety. Read 2026-10-22.
- National Center for Complementary and Integrative Health (NIH). Know the Science: Talk With Your Health Care Providers. Read 2026-10-22.
Content last updated .
Education, not medical advice. This section is for general information. It does not diagnose or treat any condition and is not a substitute for care from a qualified health professional. Natural does not automatically mean safe.
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