No.8 Mag Phos

Adults: 4 tablets. Children: 2 tablets. Infants: 1 tablet. Chronic cases: 3 dose daily. Acute cases: every half hour. New Era No 8 Mag. Phos. (Magnesium Phosphate) provides Mineral Salt support for muscle tension and stress. Mag. Phos. may provide relief from cramps, neuralgia, muscle twitches and discomfort, as well as flatulence and spasmodic nerve pain, like sciatica. 

New Era products mineral tissue salts treat ailments by correcting imbalances or deficiencies in the body's cell nutrition, helping the body to restore itself to health. Product code: 9421903830074 Cautions
Always read the label and use only as directed 

If symptoms persist consult your healthcare professional

Lactose present in each mineral tissue salt tablet is small 0.07g, if you are upset by small amounts of lactose it would be best to avoid these remedies

Ok to use during pregnancy, but consult your healthcare professional if you have concerns Ingredients
Ingredients, 

Lactose
Biotin
Magnesium Phosphate (Mag. Phos.)