Remove the blue safety release cap, and then swing and jab the EpiPen® into your outer thigh to release the hidden needle and the dose of adrenaline. Hold the pen in place for 3 seconds, then remove it. The EpiPen® User Guide page has full instructions. It is best to practise regularly with a training device. You can order a trainer pen here* if you do not have one, or ask your doctor for one. *postage and packaging to be paid. UK only.