Letrozole and exemestane are two drugs with different action characteristics, both have their own advantages, no good or bad.
1. Letrozole: is a reversible steroidal aromatase inactivator, which reduces estrogen levels by inhibiting aromatase, thus eliminating the stimulating effect of estrogen on tumor growth. This drug is related to exemestane, with lower tolerability and fewer side effects.
2. Exemestane: It is an irreversible steroid aromatase inhibitor, which can significantly reduce the level of estrogen in the blood circulation of postmenopausal women. Compared with Letrozole, the inhibitory effect is more complete, but its side effects are greater.
All of the above medications should be used under the supervision of a doctor, avoid self-medication. It is recommended to go to the hospital and choose the appropriate medication after evaluating your situation.