Premarin
CAS Number
12126-59-9Synonym
Estrone sodium sulfate; Sodium estrone sulfate; Par Estro; Hyhorin; Morestin
Occurrence/Use
Drug/therapeutic agent; conjugated estrogens used as estrogen replacement therapy
Date Added
Proposition 65
Chemical Status
| Cancer: | Considered, but not listed |
|---|---|
| Reproductive Toxicity : | Considered, but not listed |
In a notice published in the California Regulatory Notice Register on March 28, 1997, Premarin (CAS No. 12126-59-9) was identified as under investigation for possible listing as both a carcinogen and a reproductive toxicant, on the basis of a formal requirement for labeling imposed by the Food and Drug Administration (FDA, 1995). OEHHA has determined that no further action towards listing of Premarin is appropriate at this time, since it is already covered by previous listings of conjugated estrogens as carcinogens and reproductive toxicants.