Toremifene Citrate (Fareston, Acapodene) is an oral selective estrogen receptor modulator (SERM) which helps oppose the actions of estrogen in the body. Chemically related to tamoxifen, toremifene is a selective estrogen receptor modulator (SERM). This agent binds competitively to estrogen receptors, thereby interfering with estrogen activity. Toremifene also has intrinsic estrogenic properties, which are manifested according to tissue type or species.
Molecular Weight | 598.08 |
Formula | C32H36ClNO8 |
CAS Number | 89778-27-8 |
Solubility (25°C) | DMSO 100 mg/mL |
Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
[1] Evelien Gerits, et al. Repurposing Toremifene for Treatment of Oral Bacterial Infections
[2] Charles L Vogel, et al. Toremifene for breast cancer: a review of 20 years of data
[3] Patty Gerken. Toremifene citrate (Fareston)
[4] T L Taras, et al. Clinical pharmacokinetics of toremifene
[5] No authors listed. IARC Monogr Eval Carcinog Risks Hum. Toremifene
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