 Myasthenia gravis, a condition characterised by severe muscle weakness is another potential adverse effect from tetrazepam.Cardiovascular and respiratory adverse effects can occur with tetrazepam similar to other benzodiazepines.Prolonged use, as with all benzodiazepines, should be avoided, as tolerance occurs and there is a risk of benzodiazepine dependence and a benzodiazepine withdrawal syndrome after stopping or reducing dosage.