Whilst a well known product for Horses used by some Greyhound Trainers,
NEUTRADEX is an original, palatable muscle recovery supplement, mild diuretic and urinary buffer for horses. It contains sodium acid citrate to: Help horses prone to 'tying up' and assist with reducing muscle stiffness and soreness. Help delay the onset of muscle fatigue to improve endurance.

Horse Electrolyte is higher in Salt than Greyhounds whilst Greyhound body salt is Potassium based

Sodium Citrate as a dietary supplement can provide health benefits to assist the reduction of inflammation, help digestion, reduce the risk of kidney stones. help to regulate blood pressure, reduce cholesterol levels, improve the absorption of nutrients from food.
All of the above issues that Sodium Citrate can help resolve can be worse by avoiding those issues.

To suggest that ingredients in formulas in micro ratios are detrimental to the wellbeing of the user is misleading.
The body cells carry countless minerals found in the Earth.
Fed by Vitamins grown above the Earth.
Bio Chemistry is simple when understood.
Too much of anything in incorrect proportions is not healthy.
Trainers should show more concern about the levels of Sodium Chloride fed to Greyhounds in Kibbles,1 to 3% as indicated on the bag equates to 2g to 2.5g per cup of Kibble.
Excess Sodium Chloride hardens arteries restricts bloodflow causes Cramping, Stroke and Heart attacks.

Potassium Chloride is the Greyhound Athletes main body salt.

So what happens if the Greyhound has too much Potassium Chloride?

How does potassium chloride affect the heart? If taken in too high ratio, potassium chloride may cause heart palpitations or heart arrhythmia, which can be life threatening. However, having low potassium levels can also affect the heart, increasing the stiffness of the arteries and reducing muscle movements.

There are prescribed amounts for all Minerals.

Jack not sure why it has to be a game?
but the Sodium Citrate in Recharge can hardly be called an overdose.

5mil equates to 5gram

5mL of RECHARGE contains:
Sodium 0.14g.
Citrate 0.06g.
Potassium 0.15g.
Magnesium 0.02g.
Chloride 0.22g.
Sulfate 0.06g.
Phosphate 0.09g.
Glucose 1.3g.

The only ingredient over 1 gram of the 5 gram total is Glucose the balance after ingredient total is made up of Water.

The Importance of Sodium in Your Dog's Diet
Found in the blood and in the fluid that surrounds cells, sodium maintains the cellular environment and prevents cells from swelling or dehydrating. Sodium is also important for maintaining proper nerve and muscle cell function.

For greyhounds lactate and citrate act as more effective buffers against acidosis in the muscles and blood than bicarbonates which are found in electrolytes for horses. Bicarbonate when fed to dogs is excreted and increases the amount of potassium that is loss through the kidneys.

Correct Andy,
The most common cause of issues starts with poor Diet.
Short cut feeding, Kibbles with excess Salt (as preservative).
Kibbles have 25% + Protein then added to excess Meat, Protein is not Energy its role is to build strength and fibre to Muscle.
These high Protein Diets compromise Carbohydrate and Fatty Acids (Omega 3 6 & 9 Oil).
These high Protein Diets cause Kidneys and Liver to work overtime to process causing Dark Yellow heavy thick smelly urine.
Hence the start of the problem, Compromised Filters for Blood (Liver) and Fluids (Kidneys).
To say you dont need Mineral based products to deal with these issues is to bury ones head in the sand.
Kidney Flushes for Canine and Human generally Potassium Citrate, Potassium Acetate, Sodium Acetate, Sodium Citrate in micro ratio.
Methionine as Liver Detox.
Horse Kidney flushes are high in Sodium Citrate and should NEVER be used for Greyhounds.