Fentanyl Vaccine Could Block Addiction | San Jose News

San Jose News Today | 2 Min News | The Daily News Now! · Jul 28, 2026 · 1m

Scientists at Scripps Research have engineered a groundbreaking fentanyl vaccine that could revolutionize addiction treatment by blocking the drug before it reaches the brain, potentially slashing overdose risks and cravings. By tweaking fentanyl’s structure to preserve pain relief while eliminating respiratory depression, researchers created a vaccine that trains the immune system to neutralize the drug—and even its dangerous designer variants. Tested in mice, the vaccine produced potent antibodies that intercept fentanyl, offering a powerful shield for those in recovery or at high relapse…