Table 1 Washout periods
Therapy | Washout period |
|---|---|
Hormone agents vaginally (e.g. ring, cream, gel, etc.) | ≥ 1 week |
Transdermal agents containing estrogen-only or estrogen/progestin | ≥ 4 weeks |
Oral estrogen or progestin | ≥ 8 weeks |
Intrauterine progestin | ≥ 8 weeks |
Progestin implants or a single estrogen injection | ≥ 12 weeks |
Estrogen pellets or progestin injections | ≥ 24 weeks |
Acupuncture or moxibustion | ≥ 1 week |
Herbal medication or pharmacopuncture | ≥ 3 weeks |