In addition to the short-term changes in metabolism, some studies show that ephedrine can promote weight and fat loss over longer time periods. In five studies of ephedrine compared to a placebo, ephedrine led to weight loss of 3 pounds (1.3 kg) per month more than a placebo for up to four months ( 10 , 11 ).
How long does ephedrine take to start working?
Onset with intravenous use is fast, while injection into a muscle can take 20 minutes, and by mouth can take an hour for effect. When given by injection it lasts about an hour and when taken by mouth it can last up to four hours.
How long can you safely take ephedrine?
That said, as I mentioned earlier, we can’t be sure as to the long-term side effects of ephedrine use, so if you want to play it as safely as possible, take a week off every 4 to 6 weeks. If you’re also taking caffeine with your ephedrine, come off that as well, as it will help maintain your body’s sensitivity to it.
What happens when you mix caffeine and ephedrine?
Ephedrine plus caffeine may increase metabolic rate and fat loss more than either ingredient alone. Studies show the combination of ephedrine and caffeine produces greater weight and fat loss than a placebo.
Is ephedrine the same as phentermine?
No. Phentermine and ephedrine are two separate medications.
What should you not take with ephedrine?
Ephedrine may interact with other adrenalin-like drugs, MAO inhibitors, beta-blockers, blood pressure medicine, tricyclic antidepressants, diuretics (water pills), digoxin, atropine, theophylline, oxytocin, or St John’s wort. Tell your doctor all medications you are taking.
What are the dangers of ephedrine?
The FDA banned dietary supplements containing ephedrine alkaloids because of their serious safety risks. The supplements were associated with cases of heart attack, seizure, stroke, and sudden death.
Does ephedrine reduce appetite?
Abstract. When given as a supplement to an energy restricted diet the sympathomimetic agent ephedrine, in combination with methylxanthines such as caffeine, improves fat loss by dual actions: a central suppression of appetite and peripheral stimulation of energy expenditure covered by fat oxidation.
Why do athletes take ephedrine?
Because ephedrine is a sympathomimetic and a central nervous system stimulant, it is commonly used as an energy enhancer. Ma huang-containing products are marketed and used to improve aerobic performance and endurance, reduce fatigue, increase alertness, improve reaction time, and even increase strength.
What happens if you take too much ephedrine?
The symptoms of overdose are normally seen as nausea, vomiting, hypertension, fever, palpitations, tachycardia, restlessness, respiratory depression and convulsions. Paranoid psychosis, delusions and hallucinations may also follow ephedrine overdosage.
Ephedra can cause a quickened heartbeat and elevated blood pressure. Side effects include heart palpitations, nausea, and vomiting. More than 800 dangerous reactions have been reported with use of the herb. These include heart attacks, strokes, seizures, and sudden deaths.