Supplement Reviews  |  Fat Burners & Weight Loss  |  Bodybuilding Guides  |  Training & Workout  |  Health & Nutrition  |  Diet & Fitness Articles  |  User Reviews
Fat Burners & Diet Pills

Biotest Hot Rox Extreme Review
Bitter Orange - Citrus Aurantium
Cellucor D4 Thermal Shock
Chitosan - What is Chitosan?
Chromium Picolinate Weightloss
Coleum Forskohlii Extract
Fat Burners Review guide -1
Fat Burners Review guide - 2
GHR15 Anti Aging Review
GHR15 Supplement Review (2)
GHR Side Effects
Green Tea Diet Patch
Hoodia Gordonii Diet Pill Review
Hoodia Gordonii Diet Pill Guide - 1
Hoodia 750 & Hoodia Dex L10 - 2
Desert Burn Hoodia Review - 3
Guarana Side Effects & Benefits
Hoodoba Pure Review - 4
Hydroxadrine Review
Instone LeanFire Review
Isatori Flash Point Fat Burner - 1
Isatori Flash Point Fat Burner - 2
Lean System 7 Review
Lipoderm Ultra Review
Lose Fat & Love Handles
NutraSport Cutting Gel Review
Nutrex Lipo 6 Review (Lipo 6x)
Nutrex Lipo 6 for Her Review
Fat Burners Potential Downfall
Ephedrine Risks and Danger
Oolong Tea and Weight Loss
Prolab Metabolic Thyrolean
Pyruvate Supplement Review
Relacore Review - 1
Relacore Side Effects - 2
Slimquick Review - 1
Slim Quick Review - 2
Slimquick Extreme Review - 3
Slimquick Cleanse Review - 4
Twinlab Ripped Fuel Review
Twinlab Ripped Fuel Side Effects
Stacker 2 Fat Burner Review
Stacker 2 Ephedra Free Review
Stacker 3 Fat Burner Review
Tea Lite Weight Loss Patch
Tonalin CLA Review
Tonalin CLA Side Effects & Benefits
Tonalin CLA Studies
Trimspa Review
VPX Meltdown Review
VPX Redline Review
Wu Yi Tea Review
Yerba Mate Benefit, Side Effects -1
Yerba Mate Tea Drinking - 2
Zantrex 3 Review
Zantrex 3 Side Effects
Zotrin For Women and Men

Xenadrine EFX & RFA-1

New Xenadrine RFA-1 Review
Xenadrine EFX Review
Xenadrine NRG 8 Hour Revew
Xenadrine information
Xenadrine RFA 1 (Original)
Xenadrine side effects
Thermogenics fat loss

MuscleTech Hydroxycut

Hydroxycut Review
Hydroxycut Hardcore Review
Hydroxycut Max for Women
Hydroxycut Side Effects
Hydroxycut With Hoodia
Hydroxycut Acai Reviews
Hydroxycut FAQ

Weight Loss & Fat Loss

Accelis Review
Adipex Diet Pill Information
Adipex Side Effects
Alli Weight Loss Pill Review
Clenbuterol Weight Loss
Clenbuterol Side Effects
Cortislim Review
Dexatrim Max Complex 7 Review
Fenphedra Review
Hollywood Miracle Diet Review
Lipozene Review
Leptopril Diet Pill Review
Leptovox Review
Lipovox Review
Meridia Weight Loss Pill
Meridia Side Effects
Miracleburn Review
Nuphedrine Review
Orovo Detox Weight Loss Pill
Phentermine Diet Pill Information
Phentermine Diet Pill Studies
Phentermine Side Effects
Phentermine Types
Quick Fat Loss Tips
Sensa Weight Loss Reviews
Sesamin Review - Sesamin Oil
Slimshots Review
Weight Loss Program 1
Weight Loss Program 2
Xenical Weight Loss Pill
Xenical Side Effects

Diets & Diet Plans

Abs Diet Plan
Atkins Diet
Biggest Loser Diet Plan
Bill Phillips Body For Life
Blood Type Diet (A B O AB)
Bob Greene's Diet
Burn the Fat Feed the Muscle
Calorie Shifting Diet Plan Review
Curves Diet
Dash Diet
Dr. Phil Diet Plan
Fat Flush Diet Plan
Fat Smash Diet
GI Diet
Holy Grail Body Transformation
L.A. Weight Loss
Mediterranean Diet
Nutrisystem Diet
Slim Fast Diet
Sonoma Diet
South Beach Diet
The Truth About Abs Review
Zone Diet

Clenbuterol Weight Loss

Clenbuterol Side Effects (part 2)

Clenbuterol is a beta 2 adrenergic receptor agonist, which is a class of drugs used in treating asthma and other pulmonary diseases. This class of drugs acts on the β2-adrenergic receptor, causing smooth muscle relaxation resulting in dilation of the bronchial passage. Side effects of this class of drugs generally include insomnia, anxiety, and tremor.

Clenbuterol is a CNS stimulant and increases thermogenisis. It will lead to a rise in blood pressure and result in a slight increase in body temperature. Below is a list of  side effects:

  • Increase in blood pressure
  • Increase in body temperature
  • Increase in sweating
  • Headaches
  • Insomnia
  • Nausea
  • Chest pains
  • Dizziness, light headedness
  • Muscle cramps & muscle tremors
  • Dry mouth
  • Vomiting

Various side effects have also bee documented in studies involving animals:

  • Treatment with Clenbuterol increased size of both slow and fast skeletal muscles, and as well as the heart muscle. 1
  • Clenbuterol treatment increased fatigability in Soleus and Diaphragm muscles by 30 to 40%. 2
  • It is reported that clenbuterol increases the lean- to fat conversion in livestock and is an illegal stimulating and growth promoter. Consumption of meat containing clenbuterol residues causes adverse health effects in human, reduces the performance in exercise and disturbs reproductive system & hormone response. 3
  • Treatment with clenbuterol exhibited cardiac hypertrophy where absolute heart mass increased by ~ 19% indicating strongly that chronic clenbuterol use adversely affects exercise performance in rats. 4

List of Clenbuterol Side Effects & Studies

Cardiac hypertrophy - thickening (enlarging) of the heart muscle - is a possible side effect of using clenbuterol demonstrated in animal studies. As well, there have been two reports of myocardial infarction, or heart attacks. In two unrelated cases, 2 otherwise healthy body builders aged only 26 and 17 experienced myocardial infarction from the use of Clenbuterol. Various studies have also found that prolonged use actually reduced physical performance of the subjects. See below.

The weight loss effects of this drug is well documented in animal studies. Below is one study showing clen and exercise reduced fat mass by 19.5% in horses.

Chronic administration of therapeutic levels of clenbuterol acts as a repartitioning agent.
Kearns CF, McKeever KH, Malinowski K, Struck MB, Abe T.
Department of Animal Sciences, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08901, USA.

Summary: 23 unfit standard bred mares were placed in 4 groups: clenbuterol only, clenbuterol plus exercise, exercise only, and control group. The study found the exercise only group body fat reduced by 9.3%, clenbuterol group reduced fat mass by 15.4%, and the clenbuterol and exercise group decreased fat by 17.6% while increase fat free mass by 4.4%. The results suggest that exercise with Clenbuterol reduced fat mass and chronic use caused significant repartitioning in the horses.

Year-long clenbuterol treatment of mice increases mass, but not specific force or normalized power, of skeletal muscles.
Lynch GS, Hinkle RT, Faulkner JA.
Institute of Gerontology, University of Michigan, Ann Arbor, USA.

Summary: This study tested the treatment with clenbuterol on increase of skeletal muscle mass in mice. The clenbuterol group received 1.5-2mcg/kg of clen per day for 52 weeks. The study found clenb treatment increased the absolute mass of each muscle tested: the heart by 28%, extensor digitorum longus (EDL) by 16%, soleus by 22% and tibialis anterior by 17%. However absolute power output was no different between the clenbuterol group and the control group leading to the conclusion that "following year-long treatment of mice with clen, the mass of the heart and both fast and slow skeletal muscles is increased, but the lack of any change in normalized power output indicates that clenbuterol has little therapeutic effect on the functional properties of skeletal muscle."

Beneficial versus adverse effects of long-term use of clenbuterol in mdx mice.
Dupont-Versteegden EE, Katz MS, McCarter RJ.
Department of Physiology, University of Texas Health Science Center at San Antonio, USA.

Summary: This study involved mice fed with clenbuterol 1 - 1.5 mcg/kg body weight. Functional characteristics of soleus (SOL) and diaphragm (DIA) muscles were evaluated. The study found clenbuterol treatment was associated with a 30-40% increase in fatigability in DIA and SOL muscles of control and mdx mice at both ages. Furthermore, 1-year-old mdx mice receiving clenbuterol exhibited deformities in hind limbs and spine. These results suggest that long-term clenbuterol treatment has a positive effect on muscle growth and force generation, but has adverse side effects such as increased muscle fatigability and development of deformities.




1. Year-long clenbuterol treatment of mice increases mass, but not specific force or normalized power, of skeletal muscles.Lynch GS, Hinkle RT, Faulkner JA. Institute of Gerontology, University of Michigan, Ann Arbor, USA.

2. Beneficial versus adverse effects of long-term use of clenbuterol in mdx mice.Dupont-Versteegden EE, Katz MS, McCarter RJ. Department of Physiology, University of Texas Health Science Center at San Antonio, USA.

3. Zhang Y, Wu Y. Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine, Beijing 100050, China.

4. Deleterious effects of chronic clenbuterol treatment on endurance and sprint exercise performance in rats.Duncan ND, Williams DA, Lynch GS. Department of Physiology, The University of Melbourne, Parkville, Victoria 3052, Australia.