Clinical manifestations of an acute porphyric attack and respective symptomatic treatment
| Clinical features | Treatment |
| Central | |
| Hallucinations/anxiety | Benzodiazepines, phenothiazine, olanzapine |
| Seizures | Gabapentin, levetiracetam |
| Peripheral | |
| Pain related to peripheral neuropathy | Opiates |
| Respiratory weakness | Ventilation |
| Autonomic | |
| Abdominal pain | Opiates |
| Tachycardia/hypertension | Beta blockers |
| Constipation | Lactulose |
| Vomiting | Phenothiazine |