How do Jadelle rods differ from Norplant capsules?
The Jadelle system consists of two rods, while the Norplant system has six capsules. Because there are fewer implants, Jadelle is easier to insert and remove than Norplant. Rods differ from capsules. Each Jadelle rod is 43 millimeters long and 2.5 millimeters in diameter, slightly longer (one centimeter) and slightly thicker (0.1 millimeter) than each Norplant capsule. Each rod contains 75 mg of levonorgestrel for a total of 150 mg, while the six Norplant capsules each contain 36 mg, for a total of 216 mg. Both the capsules and rods have outside sheaths composed of silicone rubber, but they are made differently. In the Norplant capsule, levonorgestrel crystals are packed within the rubber sheath, which is then sealed at each end. In the Jadelle rod, a core of mixed levonorgestrel and elastomer (a polymer having the elastic properties of natural rubber) is enclosed within the rubber sheath, which is then sealed at each end with medical adhesive. When was Jadelle approved? Jadelle was ap