June 8, 2016
June 8, 2016
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Clenbuterol (Spiropent) is a beta-receptor agonist drug used in the treatment of asthma and in bodybuilding for the purpose of fat loss. In some instances, it can also be used to enhance performance in endurance exercise.

When to use clenbuterol

Clenbuterol should only be used when fat loss needs to be particularly accelerated over a relatively short period of time. For example, if the need or intent is to lose only 1 lb of fat per week, then there are better means to do this than to use clenbuterol. Where fat loss efforts are already maximized or near-maximized, however, clenbuterol use can add perhaps another 1 lb per week to the rate of loss.

Dosage and cycling of clenbuterol

The effective dose range of clenbuterol extends from 20 mcg/day as a minimum value to 40-140 mcg/day as more common values. I think it best to start at 40 mcg/day and evaluate results on an ongoing basis, increasing dose by 20 mcg at a time as necessary. Many users adjust dosage to the level where the hands begin to shake, but fat loss can be improved markedly with doses well below this point.

Clenbuterol should be cycled rather than used continuously or for prolonged periods of time, but no exact cycling pattern is necessary. Period of use is typically from 2 to 8 weeks.

Clenbuterol has 60 capsules per sealed pouch.

SKU: OR009 Category:
Each capsule contains:  
Clenbuterol USP 40mcg/80mcg
Excipients QS  
Packing: 60 units in a sealed pouch

Dosage and administration:

Half life 36 hours
40 – 180mcg per day or as required – its typical to cycle clenbuterol on a 5 day on 2 day off and repeat

Average Cycle Length: 4 – 16 weeks

Anabolic #: NA
Androgenic #: NA
Oral Bioavailability: Estimated at 90%

CAS name (RS)-1-(4-amino-3,5-dichlorophenyl)-2-(tert-butylamino)ethanol

Synonyms: Clenbuterol, Clen, Spiropent


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Excessive usage over the recommended dose of about 120mcg can cause muscle tremor, headache, dizziness and gastric irritation. Persons self-administering the drug for weight loss or to improve athletic performance have experienced nausea, vomiting, diaphoresis, palpitations, tachycardia and myocardial infarction. Use of the drug may be confirmed by detecting its presence in semen or urine.

Adverse reactions

Hypersensitivity, Thyrotoxicosis, Tachycardia, subaortic stenosis, Acute myocardial infarction, hypertension

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