Some earlier review lumped all polyunsaturated fatty acids together without qualification whether they were short or long-chain PUFA or whether they were ω-3 and ω-6 PUFA. Conditional essentiality
Traditionally speaking, the LC-PUFAs are not essential to healthy adults. Because the LC-PUFA are sometimes required, they may be considered conditionally essential fatty acids. == Food sources ==
Studies of this formulation have been published.E2/P4 with 5 mg E2 and 150 to 300 mg P4 encapsulated in microspheres in an aqueous suspension has been studied as a once-a-month combined injectable contraceptive but has not been further developed or introduced for medical use. E2/P4 with 5 mg E2 and 100 mg P4 in a macrocrystalline aqueous suspension has also been studied as a once-a-month combined injectable contraceptive, but likewise was not further developed.As of April 2022, a vaginal ring containing E2/P4 (developmental code names DARE-HRT1 and JNP-0201) is under development for use in menopausal hormone therapy. References
External links
"Estradiol mixture with progesterone". Drug Information Portal. U.S. National Library of Medicine.