Got this from testosterone.net
Lutalyse is a veterinary drug that's coming into vogue with serious hardcore bodybuilders who'll stop at nothing to gain an "advantage" (even if it's not a real advantage). Lutalyse is made by Upjohn and is a prostaglandin (PGF2Aa).
PGF2a possibly mediates the endogenous insulin levels and is also a de facto thermogenic, as body temperature is increased after the administration of exogenous PGF2a. Unlike other fat burners, which only decrease the size of fat cells, PGF2a actually destroys them. Fat cells die when exposed to PGF2a.
Side effects associated with PGF2a use are an elevation in body temperature, vomiting, labored breathing and severe abdominal pain/cramping. As PGF2a vasoconstricts the blood vessels in the lungs, the user will feel a tightening in the chest. If you're an asthmatic, use of PGFa could very well put you into full respiratory arrest followed by death. Because PGF2a increases insulinogenic effects, hypoglycemia is a potential side effect.
PGF2a has a very short half-life in the body (only minutes) and most of it is metabolized in the lungs, thus making frequent injections necessary. PGF2a will almost always cause a very strong contraction of the intestine and bladder, emptying the stomach and intestines of all its contents. That's a nice way of saying you'll have explosive diarrhea.
Rumor has it that PGF2a will make training near impossible because of the pump that is created from this drug alone. One of the logistical drawbacks of PGF2a is the difficulty of administration. As it has such a short half-life, injections will be needed quite frequently. Lutalyse comes in a 5 ml (5 mg/ml) multi-dose vial. A single aspirin can render the effects of Lutalyse nonexistent, so most people who use this drug avoid aspirin and aspirin analogs.
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