Can Demerol make you talk crazy or hallucinate?

Yes, Demerol (meperidine) can cause side effects such as confusion, agitation, and hallucinations, particularly at higher doses or in individuals with certain sensitivities. These effects are more likely in older adults or those with underlying health conditions. It's important to use Demerol under medical supervision to minimize risks and monitor for adverse reactions. If experiencing unusual thoughts or hallucinations, it's crucial to seek medical attention immediately.