Table 2 Choices for COS according to possible combinations of GnRH agonist/antagonist and stimulation drugs
| GnRH agonist/antagonist protocol | ||||||||
|---|---|---|---|---|---|---|---|---|
| GnRH agonist | GnRH antagonist | No GnRH analogue | ||||||
| Long | Short | Micro flare | Standard | Mild |
Modified natural | Mini | Natural | |
| Gonadotropins and other agents | ||||||||
| FSH | ||||||||
| HMG | ||||||||
| FSH + LH | ||||||||
| Others: Clomiphene | ||||||||
| Letrozole | ||||||||
| Testosterone | ||||||||
| Oestrogens | ||||||||