Rx-Only Chemical Name Semaglutide Elimination half-life 7 days Dosage (Strength) 0.5mg pen of 0.5mg/0.5ml, 0.25mg pens of 0.25mg/0.5ml, 1mg pens of 1mg/0.5ml, 1.7mg pens of 1.7mg/0.75ml, 2.4mg pens of 2.4mg/0.75ml Pregnancy