Metoprolol
"I am a 25 year old female diagnosed with idiopathic hypertension and tachycardia. Was switched recently switched to 50mg metoprolol by my GP. Felt fine first four days and by fifth day started to experience vivid dreams, extreme anxiety after waking from sleep, and then started developing severe panic attacks and constant anxiousness. Was immediately taken off this medication and placed on bystolic 5mg. It has been 5 days since being taken off the medication and I am slowly losing sensation of anxiety but have some residual affects that I feel will take me a while to shake. It has been an incredibly traumatic experience. I do not recommend a beta blocker that crosses the blood brain barrier if it is not necessary."