TATTARRATTAT is the longest palindrome in the Oxford English Dictionary 2nd edition (OED2). TATTARRATTAT is the longest palindrome in the Oxford English Dictionary 2nd edition (OED2). The OED2 is actually a historical dictionary of English, covering the language from the earliest times to the present day. Therefore it contains words like Tarrarrattat that are considered nonce words.
Tamoxifen Does Not Cause Depression. Nov. 6, 2001 -- There's been concern in recent years that the powerful breast cancer drug tamoxifen may cause or worsen depression. So much so, that it's even listed as a possible side effect in the Physician's Desk Reference.
Steps you can take. 1  Tamoxifen has been shown to reduce the risk of first-time hormone-receptor-positive breast cancer in both postmenopausal and premenopausal women at high risk. Certain medicines may interfere with tamoxifen's protective effects. Visit the Tamoxifen page to learn more.