iO Cal Jet is an oral calcium and magnesium gel supplement for calcium deficient cattle. A shortage of minerals, such as calcium and magnesium in the body, usually after calving, can cause recumbency. Also includes Vitamin D3. Dose Rates & Administration Instructions: For oral use only. Adult/Pregnant/Lactating ? Give 500ml daily. If heavily pregnant ? Give 500ml daily, morning and night. Open the bottle and place the neck of the container over the tongue towards the back of the throat. Gently squeeze the bottle to assist swallowing. Use in conjunction with a 4 in 1 injection. Active Constituent: Calcium 132.7g/L, Vitamin D3 250mg/L (10,000 IU/L), Magnesium 922mg/L Recycle containers via drumMUSTER.