From http://emc.medicines.org.uk/emc/asse...cumentID=16047

METATONE contains Vitamin B1 (Thiamine hydrochloride Ph Eur) 500 micrograms, Calcium glycerophosphate Ph Eur 45.6 mg, Potassium glycerophosphate 45.6 mg, Sodium glycerophosphate 22.8 mg and Manganese glycerophosphate NFX 697 micrograms in each 5 ml.

Vitamin B1 is self-explantory. The other four are minerals called electrolytes. They are vital to life. Let levels get too low and you die. Poor diet, heavy sweating, dysentery, etc are all ways you can lose them. Athletes are vulnerable which is why "sports drinks" are popular. As for PD, there are tons of references to them as gatekeepers that let things in and out of the cell wall. Ion channels.

From the same source:

Vitamin B1

Vitamin B1 is essential for proper carbohydrate metabolism and plays an essential role in the decarboxylation of alpha keto acids. Vitamin B1 deficiency may lead to the clinical condition known as Beri-Beri.

Glycerophosphates

Glycerophosphates were introduced on the grounds that lecithin contains phosphorus in the form of the glycerophosphate radical and that glycerophosphates would therefore be a source of phosphorus that would be more easily assimilated by the tissues, particularly by the brain. Phosphorus is essential for most metabolic processes. As calcium phosphate, phosphorus is a major constituent of bones and teeth. In addition phosphates are a major constituent of all oils and as adenosine phosphates, play an essential role in energy liberation and utilisation.

Calcium

Calcium is a major component of bones and teeth and is necessary for the clotting of blood, the integrity of many cells, especially those of the neuromuscular system and for cardiac function. The consequence of decreased calcium levels in its extreme includes convulsions, tetany, behavour and personality disorders, mental growth retardation and bone deformities, the most common being rickets in children and osteomalacia in adults.

Manganese

Manganese is required for the synthesis of the mucopolysaccharides of cartilage, glucose utilisation, steroid biosynthesis and for the activity of pyruvate carboxylase.

Sodium and Potassium

Sodium is present as the sodium ion in all body fluids and in particular in extracellular fluids, whilst potassium as the potassium ion is largely present intracellulary. Together, sodium and potassium control many cellular events, with a critical role in maintaining fluid balance and in muscle and nerve activity

So were you serious about how a bottle would last under your present methods?

BTW, in general this seems to be fairly safe stuff.