Which method provides the longest duration of contraception?

Which method provides the longest duration of contraception?

• A. Levonorgestrel intrauterine system.
• B. NuvaRing
• C. Levonorgestrel implant
• D. Spermicidal suppositories

Answer: (A)

Long-acting duration is determined by how the method delivers hormones or is physically present in the body. The levonorgestrel intrauterine system releases hormone directly in the uterus and remains in place for several years, providing continuous contraception without user action after insertion. Depending on the brand, it can last about five years, which is longer than the other options listed. The levonorgestrel implant works for around three years, offering substantial duration but shorter than the intrauterine system. The NuvaRing is used in cycles—insert for three weeks, then remove for a week—so its protection is renewed monthly, not spanning years. Spermicidal suppositories require active use with each sexual act and do not provide long-term protection. Thus, the intrauterine system offers the longest duration of contraception among these choices.

Long-acting duration is determined by how the method delivers hormones or is physically present in the body. The levonorgestrel intrauterine system releases hormone directly in the uterus and remains in place for several years, providing continuous contraception without user action after insertion. Depending on the brand, it can last about five years, which is longer than the other options listed.

The levonorgestrel implant works for around three years, offering substantial duration but shorter than the intrauterine system. The NuvaRing is used in cycles—insert for three weeks, then remove for a week—so its protection is renewed monthly, not spanning years. Spermicidal suppositories require active use with each sexual act and do not provide long-term protection. Thus, the intrauterine system offers the longest duration of contraception among these choices.