Vaping: seizures could be a rare side effect of e cigarettes Vox Get rid of dangerous vapes The Nevada Independent Behind the sweet taste of vapes, some pods hide hospital drugs like etomidate a powerful anaesthetic never meant for inhalation. When vaped, it can cause seizures, breathing spasms, and sudden collapse. E cigs: More Dangerous Than We Thought Colorado Allergy & Asthma Centers, P.C.