# antiestrogen
---
**antiestrogen** are a type of [[medicine]] that
Tamoxifen (Novodex)
Hormonal Agent: antiestrogen for estrogen sensitive
tumors
Compete with estrogen by binding to the receptor sites
Estrogen Antagonist — blocking estrogen in tumors
preventing tumor growth
Estrogen Agonist (estrogen-like) —
Positive effects on lipid levels and bone mineral densities
Indications:
treat disease: reduces tumor recurrence and prolongs life
Primary prevention in high risk women
Increases risk for endometrial cancer and thrombosis
Safety: Safe patient handling
## Mechanism of Action
## Contraindications
## Adverse Reactions
## Examples
___