New York: Researcherssay that formulating drugs as liquid salts may provide a safe and efficient strategy for topical delivery of drugs that cause skin toxicity. The researchers who brought out the findings also included one of Indian-origin.
A novel formulation of the drug propranolol as a liquid salt enables delivery through the skin with reduced toxicity, the findings showed.
“Propranolol is positively charged which is a likely source of its toxicity. Shielding of this charge by association with a counter species in the liquid salt reduces its toxicity. These findings are broadly applicable to many charged drugs” said study senior author Samir Mitragotri, a professor at the University of California, Santa Barbara in the US.
Skin toxicity remains a major challenge in the design and use of new topical drug formulations. Many drugs must be dissolved in organic solvents which are typically toxic to the skin.
Many drugs such as propranolol itself show dose-dependent skin toxicity. Formulating drugs as liquid salt mitigates both sources of toxicity.
Given their fluid nature, liquid salts eliminate the necessity of organic solvents. In addition, counter ions used to form the liquid salts shield the drug charge, which further reduces drug-induced toxicity.
The researchers said that this is the first study that reports the design of liquid salts to minimise skin toxicity. Such formulations can increase the spectrum of drugs that can be safely delivered via a transdermal patch.
“This technology presents an exciting new, patient compliant solution for treating diseases,” study co-author Michael Zakrewsky from University of California, Santa Barbara. (IANS), (image courtesy: irp-cdn.multiscreensite.com)
Former New York Mayor Michael Bloomberg’s charity has announced a $50 million donation to help fight the nation’s opioid epidemic.
Bloomberg Philanthropies said over the next three years it will help up to 10 states address the causes of opioid addiction and strengthen prevention and treatment programs. Its initiative involves a partnership with the Centers for Disease Control and Prevention, The Pew Charitable Trusts, Johns Hopkins University and Vital Strategies.
Bloomberg, who has been considering a 2020 Democratic presidential bid, was expected to discuss the funding Friday during his keynote address at The Bloomberg American Health Summit in Washington. A spokeswoman said there was “no stated link” between his political aspirations and the $50 million investment to fight opioids.
Bloomberg’s charity said CDC data shows there were more than 70,000 U.S. drug overdose deaths last year, including more than 47,000 from opioids, the highest numbers on record. It said those numbers are a leading factor in the decline of U.S. life expectancy over the past three years.
Bloomberg called the sobering numbers part of “a national crisis.”
“For the first time since World War I, life expectancy in the U.S. has declined over the past three years — and opioids are a big reason why,” he said. “We cannot sit by and allow this alarming trend to continue — not when so many Americans are being killed in what should be the prime of their lives.”
He said in a statement he hoped his charity’s work in Pennsylvania, one of the states hardest hit by the opioids crisis, would lay the groundwork “for more effective action across the country.”
The partnership focuses on identifying new approaches to tackle opioids and plugging gaps in current treatment and prevention programs. Staff members from partner organizations will support state and local programs to reduce opioid-related deaths, and successful initiatives and guidelines will be replicated elsewhere, with the goal of creating a model for the rest of the nation.
Pennsylvania Governor Tom Wolf said he was “deeply grateful” for the financial and technical resources his state will receive through the partnership with Bloomberg Philanthropies.
“From our first responders and health care professionals to teachers and social service providers, heroes across our commonwealth are saving lives and protecting residents in our communities every day from this awful scourge,” Wolf, a Democrat, said in a statement issued by the Bloomberg charity. “We are doing everything we can to help them, and I am confident that this partnership will mark a turning point in our efforts.”
The Drug Enforcement Administration said this month in its National Drug Threat Assessment that heroin, fentanyl and other opioids continue to be the highest drug threat in the nation.
Bloomberg, who has been an independent, a Republican and a Democrat, declared lifetime allegiance to the Democratic Party and outlined an aggressive timeline for deciding whether to run for president in an interview with The Associated Press this month. He has regularly criticized President Donald Trump and spent a fortune to help elect Democrats in the midterm elections. (VOA)