I was taking 1.25 mg of Enjuvia, a conjugated estrogen, but the company is no longer producing it and i m going through estrogen withdrawal. Although i m 72, i m in generally excellent health but have had two open heart surgeries and a peripheral nerve surgery on my two major occipital nerves. Also, was diagnosed with extreme degenerative osteoarthritis. Because of heart and skeletal issues, research has indicated-and my cardiologist has concluded- i should remain on estrogen. (I have an iud used off label to provide prophylactic protection to my uterus because i always have an allergic reaction to anything with the slightes amount of progestin in it.) am panicked. Do i try natural estrogen like estrone? Birth control pills, i ve read, have higher does of estrogen than would be good for a menopausal female.