There are two preparations of butylphthalein, butylphthalein soft capsule and butylphthalein injection. Butylphthalein injection is mainly applied during the acute phase of cerebral infarction, within 48 hours, and butylphthalein capsule can be applied during the acute phase or taken orally during the recovery period. Both of these drugs have an ameliorating effect on the damage of central nervous system in patients with acute cerebral ischemia and can promote the functional recovery of patients. If you suffer from acute cerebral infarction, you also need to visit the neurology department of a regular hospital in a timely manner, so that the doctor can determine this disease based on the symptoms and signs as well as the results of brain CT or MRI. If it is in the hyperacute phase such as within three hours, you need to choose thrombolytic therapy first, and you cannot just rely on butylphthalein injection, which needs to be used under the guidance of a doctor.