Epitalon 50 mg reconstitution calculator

The same water makes this vial five times as concentrated as the 10 mg vial. With 2 mL, the 50 mg vial is 25 mg/mL (250 mcg per unit) and the 10 mg vial is 5 mg/mL (50 mcg per unit), so the same syringe reading holds five times as much. With 5 mL this vial is 10 mg/mL (100 mcg per unit), the same strength as 10 mg in 1 mL. Units worked out for one vial size don’t carry over to the other: check the size printed on your vial, and recalculate whenever the vial size or the water changes.

The FDA’s 2026 review says that, due to epitalon’s limited solubility in water, “it may not be possible to compound epitalon (free base) injection at 3 mg/mL using water as the solvent” (FDA). The examples here make 25, 20 and 10 mg/mL, about 3 to 8 times that figure. Bringing 50 mg down to 3 mg/mL would take about 16.7 mL of water (50 ÷ 3), so check that against what your vial can physically hold (how much water can a vial hold). The review gives no strength at which epitalon is known to dissolve fully in water. If powder is left or the liquid stays cloudy, don’t use it; ask a pharmacist.

A 50 mg vial holds five times what a 10 mg vial holds, so the same amount per draw takes five times as many draws and the mixed vial stays in use longer. The FDA’s 2026 review cites reports that, once mixed, epitalon (free base) “in solution should be stable for 2-7 days stored at 4°C and below -18°C for future use” (FDA). The report gives that figure without tying it to how much water is added, so don’t assume more water lengthens it; whatever the water, the vial holds the same 50 mg and the same number of doses. With no approved product, no official label sets a beyond-use date for a mixed vial. The calculator above shows how many doses of your amount the vial holds: count them against how long a mixed vial lasts before you add water, and ask a pharmacist. More on this: how long reconstituted peptides last.