Only use needles that are compatible for use with OptiSet. • Always perform the safety test before each injection. • If you are using a new OptiSet the initial safety test must be done with the 8 units preset by the manufacturer. • The dosage selector can only be turned in one direction. • Never turn the dosage selector (i.e. never change the dose) after injection button has been pulled out. • This pen is only for your use.