1.cardiovascular: bradicardie sinusala, hTA, prelungirea conducerii AV, bloc de ramura, asistolie, tahicardie sinusala (Practolol, Pindolol, SOtalol), soc cardiogen2. snc: delir, halucinatii, psihoza, convulsii, coma3. respirator: bronhospasm, epa , soc respirator (Propranolol-prin effect central)4. metabolic: hipoglicemie5. alte simpt: cianoza, midriaza, hipotermine