Rohypnol alone or with combination with other drugs can lead to serious physical effects such as; respiratory depression, low blood pressure, sedation, headaches, loss of physical coordination, cardiovascular collapse, coma, or even death. It is also possible to get addicted or develop tolerance to Rohypnol, which in turn can lead to withdrawal symptoms such as extreme anxiety, seizures, and hallucinations.

https://recoverypartnernetwork.com/drug/benzodiazepine/rohypnol-addiction-and-abuse