There isn't one single injection for all period-related issues. The type of injection depends on the specific problem. Several injections can influence menstruation, either by preventing pregnancy or treating hormonal imbalances causing irregular periods.
Injections for Contraception
Several injectable contraceptives are available to prevent pregnancy. These injections, such as Depo-Provera, Sayana Press, and Noristerat, are highly effective (99% effective if used correctly) and provide long-term protection. These injections contain hormones that prevent ovulation, making pregnancy less likely. A common side effect is a change in menstrual bleeding, which may lessen or cease altogether. [Source: NHS inform] It can take up to 10 months after stopping the injection for periods to return to normal and for fertility to return. [Source: Planned Parenthood] The duration of the effect varies; Depo-Provera lasts for three months. [Source: The Royal Women's Hospital] For teenagers, the birth control shot is a common option, given every 3 months. [Source: Nemours KidsHealth]
Injections for Irregular Periods
Medroxyprogesterone injections can treat abnormal menstrual cycles or irregular vaginal bleeding by increasing progesterone levels. Progesterone deficiency can lead to irregular periods or complications with pregnancy. [Source: Cleveland Clinic, MedlinePlus] In some cases, intramuscular triamcinolone acetonide (TA) can also disrupt menstrual patterns. [Source: BMJ] Note that while some injections can stop or significantly reduce bleeding, this is often a side effect of birth control injections, not the primary purpose.
Summary of Injection Types
- Contraceptive Injections: Prevent pregnancy; may cause lighter or absent periods. Examples include Depo-Provera, Sayana Press, and Noristerat.
- Progesterone Injections: Treat irregular periods caused by hormonal imbalances. An example is a medroxyprogesterone injection.
It's crucial to consult a healthcare professional to determine the appropriate injection for your individual needs and to discuss potential side effects.
