Povidone-iodine is also efficient against fungi and viruses (including HIV and "Herpes simplex"). It is used in pleurodesis (fusion of the pleura because of incessant pleural effusions). For this purpose, povidone-iodine is equally effective and safe as talc, and may be preferred because of easy availability and low cost. There is tentative evidence that chlorhexidine and denatured alcohol used to clean skin prior to surgery is better than povidone-iodine with alcohol; however, the evidence is not strong enough as of 2015 to determine routine practice. PVP-I is contraindicated in patients with hyperthyroidism (overactive thyroid gland) and other diseases of the thyroid,
Nascent iodine (dietary supplement) a registered trademark of Global Healing Center. Their formula is made of elemental iodine in glycerin aqueous solution. They state "Historically, nascent iodine has been made using electricity to break iodine’s diatomic bond and create a single, highly energized atom. However, it is difficult to use this method on the scale necessary to produce sufficient quantities". They use nanoemulsion technology (smaller drops) for their Iodine formula. Alex Jones's "Infowars Life" brand uses the same formula. The name "Magnascent" is a registered trademark of John Brookshire, owner of the 2004 nascent iodine patent. LL Magnetic Clay "Nascent Iodine" is also based