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Founded in 2005, Parsemus is an advocate of research into the plausibility of RISUG (and a method based on RISUG, called Vasalgel), a reversible male contraceptive. [2] [3] The foundation began procuring RISUG's United States intellectual property rights in November 2010, completed the acquisition process in February 2012, and is for the past 8 years conducting toxicology tests as an initial ...
Diagram showing the site of injection of the product Vasalgel, a vasectomy alternative. Reversible inhibition of sperm under guidance (RISUG), formerly referred to as the synthetic polymer styrene maleic anhydride (SMA), is the development name of a male contraceptive injection developed at IIT Kharagpur in India by the team of Dr. Sujoy K. Guha.
Vasalgel was successful in achieving azoospermia in rabbits within 36 days of injection, as well as returned vas deferens patency. [9] In 2023, the patent for Vasalgel was acquired by NEXT Life Sciences , Inc., which plans to bring the technology to market under the name Plan A for Men .
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Male contraceptives, also known as male birth control, are methods of preventing pregnancy by interrupting the function of sperm. [1] The main forms of male contraception available today are condoms, vasectomy, and withdrawal, which together represented 20% of global contraceptive use in 2019.
Every morning for a year and a half, Logan Whitehead, 24, rubbed a clear gel on his shoulders, waited for it to dry, then went about his day as usual.
Gossypol (/ ˈ ɡ ɒ s ə p ɒ l /) is a natural phenol derived from the cotton plant (genus Gossypium).Gossypol is a phenolic aldehyde that permeates cells and acts as an inhibitor for several dehydrogenase enzymes.