Ephedrine, Caffeine, and Yohimbine [ECY Stack] Review & Dosages
An ephedrine, caffeine, and yohimbine stack is used by bodybuilders to enhance weight loss results and boost energy.
The ECY stack is considered to be a stronger alternative to the traditional ephedrine, caffeine, and aspirin (ECA) stack.
What is the difference between the ECY and ECA stack and why use yohimbine extract with ephedrine? Yohimbine is a plant alkaloid that comes from the bark of the Yohimbe tree.
In combination with ephedrine and caffeine, yohimbine has a synergistic effect on fat loss and can support a different mechanism of action. However, use of this product in combination with ephedra may increase the risk of side effects. Click here to buy ephedra supplements online legally without a prescription.
Ephedrine, Caffeine, and Yohimbine Stack
An ECY stack is designed to provide greater fat loss results compared to use of Ephedrine on its own.
This stack is composed of three Central Nervous System stimulants that can increase metabolism, alertness, heart rate, blood pressure, motivation and athletic performance.
Yohimbine has synergistic effects with ephedrine and caffeine but exhibits a different mechanism of action. Bodybuilders will combine these agents in a stack to help burn fat during a cutting cycle.
However, their combination causes a higher potential for negative effects. This stack is not recommended for anyone who has not taken these compounds on their own first. It is important to start with low dosages to gauge individual tolerance.
Ephedrine is the active chemical alkaloid found in the ephedra plant that promotes greater energy metabolism and weight loss. It is a beta-adrenergic receptor agonist, causing your basal metabolic rate to increase as your body mobilizes more stored calories increase energy availability.
Caffeine has been shown in research studies to potentiate the fat burning effects of ephedrine. This plant alkaloid is well-known for its psychostimulant effects, for increasing stamina and enhancing wakefulness. It works by blocking activation of adenosine receptors.
Yohimbine is a derivative of Yohimbe bark extract, which comes from a tree that is native to certain parts of Africa. Yohimbe extract is used in certain parts of the world to enhance sex drive and blood flow to the genitalia. Today, yohimbine is used as an ingredient in prescription medications and is also widely used in energy, fat loss, and libido-boosting supplements.
Yohimbine works by antagonizing or inhibiting alpha 2-adrenergic receptor activity and by increasing levels of norepinephrine in the blood. It is commonly taken as a pre-workout supplement and has been shown to improve body fat composition in research studies.
By blocking these receptors, it may help to reduce appetite and make it easier to stick to a diet. This ingredient also affects how your body stores fat and may block the formation of new adipose tissue.
Benefits and Effects
The ECY stack has the potential to provide stimulative benefits, increased energy levels and greater mental drive. This combination also has a relatively long half-life.
The compounds found in this stack increase blood pressure, oxygenation, circulation, and promote the breakdown of stored fat. This stack also has benefits for mood and can function as an aphrodisiac.
Ephedrine is considered to be a thermogenic agent, which means it promotes the production of heat in the body. This can increase the rate at which you burn calories even while at rest.
For many users, the main benefits come from greater intensity during workouts, improved endurance as well as power output. Note that to get the best results from any diet pills or fat burners, an effective workout program and diet are necessary.
ECY Dosage Suggestions
Before taking an ECY stack, it is important to research appropriate dosages and usage guidelines. Taking too much of ephedrine HCL, yohimbine HCL or even caffeine can cause serious side effects.
When you combine these products together, the risk of side effects can be even higher. You should always start out by taking these products on their own at first at low dosages to gauge tolerance.
A person’s individual tolerance to stimulant drugs can have a huge influence on dosage as well as effects, benefits, and side effects.
The recommended dose for yohimbine HCL is between 5-50 mg per day. Users should not exceed 0.2 mg per kilogram body weight in a single day.
If you are using a yohimbe bark extract supplement, make sure to measure your dosage based on the content of yohimbine alkaloids. The amount of this active ingredient can vary across different products.
Always start at the low end of this dosage range and do not increase unless necessary to achieve desired results. The more you take, the higher the likelihood of adverse effects.
A first-time user may wish to halve the suggested dosage until the body becomes used to it, without the additional stimulants provided by the caffeine and the ephedrine.
Dosage recommendations for ephedrine vary widely online. The amount you can safely take may be different from what other users have reported taking. It is important to start at the low end of the dosage range.
Ephedrine HCL pills are used in dosages of between 8 – 50 mg per day. Some bodybuilders report taking as much as 100 mg in a day, but this can be extremely dangerous especially if using together with yohimbine and caffeine.
It is recommended to structure your dosages in a pyramid cycle, starting off at the low end and only gradually increasing over two weeks. The product may be used for a total of 4 weeks with dosages tapering off at the end.
While the substance has been banned from weight-loss supplements since 2004, it can still be found in a number of pharmaceutical drugs. Ephedrine HCl is the active ingredient in medical products used to treat asthma, allergies, and coughs as well as some fever and flu products.
Common brand names include Primatene tablets, Bronkaid, Ephedrine Plus, EPHED, VasoPro, Synergenex and Kaizen. The milligram strength found in medicinal products is typically 4mg, 8mg, 12.5 mg or 25 mg.
Dosages may be combined with other ingredients. In some states in the USA, a maximum of 12.5 mg Ephedrine HCl or Sulfate can be sold in a single tablet and the product must be combined with a minimum of 200 mg guaifenesin.
Caffeine dosing recommendations are between 50 mg to 200 mg. You can buy caffeine in single-ingredient capsules or use herbal sources such as guarana extract or green tea extract. It is not recommended to buy bulk caffeine powder due to the risk of accidentally consuming too much.
The Mayo Clinic recommends individuals not consume more than 400 mg caffeine on a daily basis to reduce risk of side effects such as headaches or jitteriness. Take this stack early in the day to avoid sleep disruptions.
It is strongly recommended to use ephedrine, caffeine, and yohimbine on their own first before combining them in a fat loss start. If you do take them together, start with a low dosage as they have a synergistic effect.
Adverse Side Effects
Combining multiple stimulants together can cause side effects. This is especially true ephedrine, caffeine, and yohimbine because of their unique mechanisms of action on the central nervous system.
Some of the potential negative effects of an ECY stack can include:
- Heart palpitations
- Upset stomach or nausea
- Restlessness, anxiety, and nervousness
- Racing heart
While many of these side effects are transient in nature, long-term use can lead to serious health problems. Using these product at high dosages can also result in dangerous outcomes:
- Tachycardia – accelerated heart rate that lasts more than a few minutes to an hour at most can place strain on cardiovascular function, blood flow, and nutrient delivery to the peripheral areas of the body.
- Arrhythmia – an irregular heart rate caused by disruption, interruption, or malfunction of electrical signals reaching the heart muscle from the brain. This confusion in the cardiac muscle can lead to severe and often life-threatening events including myocardial infarction (heart attack).
In addition to the potential for over-stimulation of the central nervous system is the risk of negative interactions with other drugs. Ephedrine, caffeine, and yohimbine can interfere with prescription medications, over-the-counter remedies, and herbal products.
This stack is not appropriate for people with any form of cardiovascular health problem. Consult with a doctor before taking this stack to determine whether it is appropriate for you.
Before considering an ECY stack, or any combination of ephedrine, caffeine, and yohimbine, you should carefully consider whether the potential risks are worth the promised results.