A free website dedicated to informing bodybuilders and other athletes about anabolic steroids and their effects.

 A free website dedicated to informing bodybuilders and other athletes about anabolic steroids and their effects.

 

Drug Profiles--> L-Thyroxine
L-THYROXINE
 
Substance: levothyroxine sodium
Trade names:                                        
Eferox 25, 50, 75, 100, 125, 150 mcg tab.; Wyeth G
Eltroxin 25, 50, 75, 100, 125, 150 mcg tab.; Glaxo Thailand
Euthroid (o.c) 25, 50, 75, 100, 125, 150 mcg tab.; Warner Lambert U.S.
Euthroid (o.c) 25, 50, 75, 100, 125, 150 mcg tab.; Warner Chilcott U.S.
Euthyrox 25, 50, 75 mcg tab.; Merck G, BG
Euthyrox 50 mcg tab.; Merck A, HU, CZ
Euthyrox 75 mcg tab.; Merck A
Euthyrox 100, 125, 150 mcg tab.; Merck D, A
Euthyrox ] 00 mcg tab.; Merck BG, HU, CZ
Euthyrox 125 mcg tab.; Merck BG
Euthyrox 150 mcg tab.; Merck HU, CZ
Euthyrox 175, 200, 300 mcg tab.; Merck G
Eutirox 50, 100 mcg tab.; Bracco I
Levoid (o.c.) 100, 200 mcg tab.; Nutrition U.S.
Levoroxine (o.c.) 50,100,200, 300mcg tab.; Bariatric U.S.
Levothroid 50, 100 mcg tab.; Rhone-Poulenc Rorer ES
Levothroid (o.c.) 25, 50, 75, 100,125, 150 mcg tab.; Rhone-Poulenc Rorer U.S.
Levothroid 25, 50, 75, 100,125, 150 mcg tab.; Forest Pharm. U.S.
Levothroid Inj. 500 mcg amp.; Rhone Fs
L-Thyroxin Henning 25, 50, 75, 100,125, 150 mcg tab.; Henning G
L-Thyroxin Henning 200, 1000 mcg tab.; Henning G
L-Thyroxin Henning. 500 mcg dry substance Henning G
L-Thyroxin Henning 174 50, 100, 150 mcg tab.; Henning A, CZ
L-Thyroxine Sodium 500 mcg/ml; McGuff U.S.
L-Thyroxin 25, 50, 100 mcg tab.; Berlin-Chemie G, CZ HU, BG
Levothyroxine 500 mcg/10ml; Steris U.S.
Levothyroxine (o.c.) 200 mcg/10 ml, 500 mcg/10ml; Lyphomed U.S.
Levothyroxine 200 mcg/10 ml, 500 mcg/10 ml; Fujisawa U.S.
Levothyroxine 25, 50, 75, 100, 125 mcg tab.; 150, 200, 300 mcg tab.; Lederle U.S.
Levothyroxine (o.c.) 25, 50, 75, 100, 125 mcg tab. Quad U.S.
Levoxine (o.c.) 25, 50, 75, 100, 125 mcg tab.; Daniels U.S.
Levoxine (o.c.) 175, 200, 300 mcg tab.; Daniels U.S.
Levoxyl 25, 50, 75, 100, 125, 150 mcg tab.; Daniels U.S
Levoxyl 175, 200, 300 mcg tab.; .Daniels U.S.
SLT (o.c) 100, 200 mcg tab.; Western Res. U.S.
Synthroid 25, 50, 75, 88, 100, 112 mcg tab.; Boots U.S.
Synthroid 125, 150, 175, 200, 300 mcg tab.; Boots U.S.
T4 tabl 50, 75, 100, 125, 150 mcg tab.; Unipharma GR
T4 tabl 175, 200 mcg tab.; Unipharma GR
Tiroxino Leo 100 mcg tab; Leo ES
Thevier 50, 100 mcg tab.; Glaxo G
Thyrax 15 mcg tab; Organon CZ, NL
Thyrax 25 mcg tab.; Organon HU, ES, NL, CZ
Thyrax 100 mcg tab.; Organon HU, ES, NL
Thyrex 50, 100, 160, 200 mcg tab; Sanabo A
Thyro-4 100, 200 mcg tab.; Faran GR, BG
Thyro Hormone 100, 200 mcg tab.; Ni-The GR
Thyroxin 100, 250 mcg tab.; Orion Fl
Thyroxin-natrium 50, 100 mcg tab.; Nycomed NO

 


Note: There are numerous other compounds worldwide which contain the substance levothyroxine sodium. Due to limited space, however, they are not part of this list.

L-Thyroxine is a synthetically manufactured thyroid hormone. Its effect is similar to that of natural L-thyroxin (L-T4) in the thyroid gland. L-thyroxin is one of two hormones which is produced in the thyroid. The other one is L-triiodthyronine (L-T3, see Cytomel). L-thyroxin is clearly the weaker of the two hormones. For this rea-son it is often used for a longer time period than L-T3. Bodybuilders use L-Thyroxine to accelerate the metabolizing of carbohydrates, proteins, and fat. The body burns more calories than usual so that a lower fat content can be achieved or the athlete burns fat although he takes in more calories. In the past L-Thyroxine was often used by competing bodybuilders. Unfortunately, with increased dosages (more than 400 to 600 mcg/day) usually not only more fat but more carbohydrates and proteins are burned as well. The athlete no doubt becomes harder but he can also lose muscle mass if steroids are not administered simultaneously. L-Thyroxine is rarely used to-day since most athletes use Cytomel or Triacana. When used properly there are few side effects to L-Thyroxine. Dosages that are too high and, in particular, dosages that are increased too quickly and too early at the beginning of intake can cause trembling of the fingers, excessive perspiration, diarrhea, insomnia, nausea, increased heartbeat, inner unrest, and weight loss.

The dosages taken by athletes are usually in the range of 200-400 mcg/day. We advise that you begin with a small dose and increase it slowly and evenly over several days. L-Thyroxine is a prescription drug and available only in pharmacies. One hundred tablets of 150 mcg each of the compound Levothroid cost about $50 on the black market. Unlike Cytomel and Triacana, L-Thyroxine is rarely found on the black market.

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