Overview

Methylsynephrine is a chemical that is made in the lab. It is found in some dietary supplements. According to the US Food and Drug Administration (FDA), methylsynephrine does not meet the definition of a dietary supplement. Also, it is banned by the World Anti-Doping Agency (WADA) for use during competitive sports, and by the Department of Defense (DOD) for use by military personnel.

Methylsynephrine is commonly used for weight loss, athletic performance, lung problems, and other uses, but there is no good scientific evidence to support these uses.

How does it work ?

Methylsynephrine is a chemical that stimulates the heart. It might increase blood pressure and heart rate. It might also increase how much blood is pumped around the body.

Uses & Effectiveness ?

Insufficient Evidence for

More evidence is needed to rate methylsynephrine for these uses.

Side Effects

When taken by mouth: Methylsynephrine is POSSIBLY UNSAFE. Because it stimulates the heart, it might cause side effects such as high blood pressure and increased heart rate. Some people also get nausea and vomiting. Do not take products with methylsynephrine on the label.

Special Precautions and Warnings

When taken by mouth: Methylsynephrine is POSSIBLY UNSAFE. Because it stimulates the heart, it might cause side effects such as high blood pressure and increased heart rate. Some people also get nausea and vomiting. Do not take products with methylsynephrine on the label. Pregnancy and breast-feeding: There isn't enough reliable information to know if methylsynephrine is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.

Heart disease: Methylsynephrine might increase blood pressure and heart rate. In theory, taking methylsynephrine might make heart disease worse.

High blood pressure: Methylsynephrine might increase blood pressure. In theory, taking methylsynephrine might make high blood pressure worse.

Surgery: Methylsynephrine might increase blood pressure and heart rate. In theory, taking methylsynephrine might interfere with surgery by increasing blood pressure and heart rate. Stop taking methylsynephrine at least 2 weeks before surgery.

Irregular heartbeat (heart arrhythmia): Methylsynephrine might increase heart rate. In theory, taking methylsynephrine might make an irregular heartbeat worse.

Interactions ?

    Moderate Interaction

    Be cautious with this combination

  • Medications for asthma (Beta-adrenergic agonists) interacts with METHYLSYNEPHRINE

    Methylsynephrine might stimulate the heart. Some medications for asthma can also stimulate the heart. Taking methylsynephrine with some medications for asthma might cause too much stimulation and cause heart problems.
    Some medications for asthma include albuterol (Proventil, Ventolin, Volmax), metaproterenol (Alupent), terbutaline (Bricanyl, Brethine), and isoproterenol (Isuprel).

  • Stimulant drugs interacts with METHYLSYNEPHRINE

    Stimulant drugs speed up the nervous system and can cause a jittery feeling and a rapid heartbeat. Methylsynephrine might also speed up the heart. Taking methylsynephrine along with stimulant drugs might cause serious problems including increased heart rate and high blood pressure.

    Some stimulant drugs include diethylpropion (Tenuate), epinephrine, phentermine (Ionamin), pseudoephedrine (Sudafed), and many others.

Dosing

The appropriate dose of methylsynephrine depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for methylsynephrine. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.
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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2020.