FDA WARNS AGAINST NEW ‘BENADRYL CHALLENGE’ CRAZE by Erik Lane | Sep 29, 2020 | DJ Blogs, Erik | 0 comments According to the FDA, there is yet another new teen craze on TikTok – this time with dangerous, potentially deadly effects. The trend encourages viewers to take large doses of the antihistamine, which is said to induce hallucinations; but the actual side effects of this include serious heart problems, seizures, coma, or even death.According to the FDA, there is yet another new teen craze on TikTok – this time with dangerous, potentially deadly effects. The trend encourages viewers to take large doses of the antihistamine, which is said to induce hallucinations; but the actual side effects of this include serious heart problems, seizures, coma, or even death.