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These combinations are not usually physically harmful, but may produce undesirable effects, such as physical discomfort or overstimulation. Extreme use may cause physical health issues. Synergistic effects may be unpredictable. Care should be taken when choosing to use this combination.
Chronic use of ephedrine can be considered moderately addictive and is capable of causing psychological dependence among certain users. Regular use can lead to tolerance and dependence, with psychological symptoms being particularly prominent.
Physical dependence is not well-characterized for ephedrine; dependence that develops with regular use appears to be predominantly psychological in nature.
Deaths have been associated with higher dose use. A case report documented fatal ephedrine poisoning in a 28-year-old female with blood concentrations of 11 mg/L and tissue concentrations of 24 mg/kg in liver, 14 mg/kg in kidney, and 8.9 mg/kg in brain.
| Species | Route | Value |
|---|---|---|
| mouse | oral | 785 mg/kg |
| mouse | intraperitoneal | 248 mg/kg |
| mouse | subcutaneous | 425 mg/kg |
Ephedrine has particularly strong effects on the cardiovascular system compared to other stimulants; chronic or high-dose use has been associated with heart attacks, strokes, and cardiac arrhythmias, with serious events more likely in those with pre-existing cardiovascular conditions.
Liver damage has been reported as a potential consequence of continuous ephedrine use, though detailed characterization is limited.
Kidney damage has been reported with continuous use; acute effects include decreased urination due to vasoconstriction of renal arteries.
Continuous use may result in impaired memory and concentration, irritability, and nervousness; these cognitive effects appear associated with chronic heavy use patterns.
Hallucinations, delusions, paranoia, and mania are possible but rare, occurring primarily in individuals with pre-existing psychiatric conditions or in cases of overdose. Confusion and paranoia may occur at high doses.
Ephedrine's botanical source, the plant Ephedra sinica known as má huáng in Chinese, has been employed in traditional Chinese medicine for over two millennia. Documentation of its use as an anti-asthmatic and stimulant dates back to the Han dynasty (206 BC – 220 AD). Multiple species within the…
Regulated as a precursor chemical under international methamphetamine control agreements
Can be sold over-the-counter for breathing purposes only in 8 milligram doses. Health Canada has restricted sales to approved breathing health products and prohibited ephedrine in weight loss or energy boosting products.
Classified as a prescription medication. Possession without a valid prescription is illegal, including ordering through postal services from outside Finland regardless of whether it is plant material or synthetic.
Reportedly sold over-the-counter at pharmacies in 25 milligram packets of 20 pills. This information has not been independently verified.
Classified as a prescription-only medication. Not otherwise controlled but requires valid prescription for legal acquisition.
Controlled under the Combat Methamphetamine Epidemic Act of 2005. FDA-approved for medical use but heavily regulated as a methamphetamine precursor. Daily purchase limit of 3.6 grams and monthly limit of 9 grams per individual. All purchases require photo ID and are tracked in state databases. Banned in dietary supplements since 2004 but available behind the counter at pharmacies for approved uses. Some states impose stricter controls: Mississippi classifies it as Schedule III requiring prescription; Oklahoma places it in Schedule V; Oregon lists it as Schedule III with possession of more than 300 tablets being a crime.
Listed as a precursor for illegal drugs under national legislation. Ephedrine hydrochloride is only available to pharmacies where nasal drops are produced in-house. Required to be stored in special locked areas within pharmacies to prevent theft.
Controlled under the Grundstoffüberwachungsgesetz (GÜG), which regulates precursor chemicals used in the manufacture of controlled substances. No longer available over-the-counter; can only be obtained through a pharmacy with prescription.
Since April 6, 2004, ephedrine and ephedra-alkaloid containing extracts may only be prescribed by doctors. Over-the-counter sales are prohibited.
Legal to possess and use but requires a prescription. Not available over-the-counter at retail pharmacies.
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