FDA investigating 127 reports of seizures, other neurological symptoms after vaping ABC News Vaping increases your risk of seizures, typically within 24 hours of doing it. Don't let vaping harm your health. Drug laced vapes pose a serious and growing public health threat. Attractive flavours and packaging can hide dangerous substances such as ketamine, fentanyl, heroin, methamphetamine, THC and synthetic opioids. Even small amounts can Can Disposable Vapes Cause Seizures? Safety Facts & Risks UK's Illegal Vape Epidemic: Why the Disposable Ban's Perfect Timing