| Characteristic |
Norplant |
Jadelle |
Implanon |
| Type of progestin |
Levonorgestrel. |
Levonorgestrel. |
Etonogestrel. |
| Number |
6 capsules. |
2 rods. |
1 rod. |
| Lifespan |
Up to 7 years. |
Up to 5 years. |
3 years. |
| Effectiveness and Client's Weight (see also Implants, Question 9) |
80 kg or more: Becomes less effective after 4 years of use.
70–79 kg: Becomes less effective after 5 years of use. |
80 kg or more: Becomes less effective after 4 years of use. |
Weight has no known impact on effectiveness. |
| Availability |
Being phased out of use (see Implants, Question 11). |
Expected to replace Norplant by 2011. |
Primarily available in Europe and Asia. Also approved for use in United States. |
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