⛔
Regulatory ban. This ingredient is banned or restricted in one or more countries. See Regulatory Status below.
⚠️
Major drug interaction. This ingredient has clinically significant drug interactions. See Drug Interactions below before use.
PubMed Studies
642
PubChem CID
⚖️ Regulatory Status
⛔
SG — Banned
HSA Singapore prohibition (2004) — ephedra alkaloid supplements prohibited.
⛔
PH — Banned
FDA Philippines — ephedra and ephedrine alkaloid-containing food supplements banned following international regulatory action.
⛔
NZ — Banned
Medsafe NZ — ephedrine alkaloid supplements banned following FDA and TGA action.
⛔
NL — Banned
NVWA prohibition (2004).
⛔
MY — Banned
NPRA Malaysia — ephedra and ephedrine alkaloid supplements prohibited.
⛔
PL — Banned
GIS Poland prohibition aligned with EU Directive 2002/46/EC.
⛔
PT — Banned
ASAE Portugal prohibition aligned with EU ban on ephedrine alkaloid supplements.
⛔
IT — Banned
Italian Ministry of Health — ephedra and ephedrine alkaloid supplements prohibited under EU Directive 2002/46/EC.
⛔
AE — Banned
UAE MOH prohibition — ephedra supplements banned. Ephedrine controlled as pharmaceutical.
⛔
SA — Banned
SFDA Saudi Arabia — ephedra and ephedrine alkaloid supplements prohibited. Controlled as prescription drug.
⛔
ID — Banned
BPOM Indonesia — ephedra and ephedrine alkaloid supplements prohibited.
⛔
SE — Banned
Livsmedelsverket Sweden prohibition aligned with EU Directive 2002/46/EC.
⛔
FR — Banned
ANSES recommended ban of kava following hepatotoxicity signals from nutrivigilance system.
⛔
EU — Banned
Internal use of comfrey banned in EU due to pyrrolizidine alkaloids causing hepatic veno-occlusive disease. Topical use only permitted.
⛔
ES — Banned
AEMPS Spain prohibition aligned with EU ban on ephedrine alkaloid supplements.
⛔
DK — Banned
Banned (2023) — Danish Veterinary and Food Administration (DVFA). Liver toxicity and thyroid disruption reports. All preparations ordered off market.
⛔
DE — Banned
BfArM banned kava-containing products in Germany in 2002 due to hepatotoxicity risk. Cases of liver failure and death reported.
⛔
CH — Banned
Swissmedic banned kava in Switzerland due to hepatotoxicity.
⛔
BE — Banned
FASFC Belgium prohibition aligned with EU Directive 2002/46/EC.
⛔
US — Banned
FDA issued warning letter against oral comfrey products. Contains pyrrolizidine alkaloids causing liver damage.
⚠️
IN — Restricted
CDSCO India (2004) — available only under prescription as pharmaceutical products.
⚠️
TH — Restricted
FDA Thailand — ephedrine controlled as pharmaceutical. Not permitted in food supplements.
⚠️
TW — Restricted
TFDA Taiwan — ephedrine controlled as pharmaceutical drug. Not permitted as health food ingredient. Products with ephedra claims require pharmaceutical registration.
⚠️
ZA — Restricted
SAHPRA (2004) — Schedule 2; pharmacist oversight required.
⚠️
KR — Restricted
MFDS South Korea (2003) — maximum dose restrictions. Not permitted for weight loss products.
⚠️
JP — Restricted
MHLW Japan (2003) — maximum dose limits; not permitted for weight loss marketing. Ephedrine controlled under pharmaceutical regulations.
⚠️
IE — Restricted
FSAI monitoring (2024) following Danish ban and hepatotoxicity reports. Products without adequate safety data may face withdrawal.
⚠️
HK — Restricted
Department of Health Hong Kong — ephedrine-containing preparations controlled as pharmaceutical products. Not permitted as health food supplements without pharmaceutical registration.
⚠️
GB — Restricted
MHRA (2004) — ephedrine alkaloid supplements restricted. Maximum doses apply under the Medicines Act.
⚠️
CN — Restricted
NMPA China — Ma Huang (ephedra) controlled. Ephedrine alkaloid content restrictions; not permitted for weight loss products. Export of ephedra controlled internationally.
💊
CA — Prescription only
DHEA is a controlled substance in Canada, available by prescription only.
💊
AU — Prescription only
DHEA is scheduled as a prescription-only medicine in Australia (Schedule 4).
💊
AT — Prescription only
AGES Austria — melatonin classified as prescription-only medicinal product. Not permitted as food supplement.
👥 Safety by Population
🚫 Contraindications & Warnings
Consult a healthcare professional before use if pregnant, breastfeeding, taking prescription medications, or if you have a medical condition. Keep out of reach of children.
💊 Drug Interactions (5)
🔴 Tamoxifen / Anastrozole
MajorChemotherapy
Management: Contraindicated with hormone-sensitive cancer treatments.
🟡 Warfarin
ModerateAnticoagulants
Management: Monitor INR.
🟡 Insulin
ModerateAntidiabetics
Management: Monitor blood glucose. May need dose adjustment.
🟡 Corticosteroids
ModerateImmunosuppressants
Management: Monitor if combining.
⚪ SSRIs
MinorAntidepressants
Management: Discuss with prescriber. Monitor for mood changes.
⚠️ Adverse Effects (1)
Androgenic side effects in women
dose-dependent Moderate
Endocrine system
Acne, facial hair, voice changes, clitoral enlargement in women. Use lowest effective dose.
🏷️ Other Names
cardiovascular_risk
