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Norditropin® Flexpro® pen. The yellow pen is a 5 mg/1.5 mL pen with 0.025 mg increments, the blue pen is a 10 mg/1.5 mL pen with 0.05 mg increments, and the green pen is a 15 mg/1.5 mL pen with 0.1 mg increments. Photo courtesy of Novo Nordisk A/S.
