Patients with diaphragmatic paralysis need to clarify the cause and be treated under the guidance of a doctor. Medications that can be taken, generally include vitamins, nerve growth factor, and cytidine diphosphate choline, among other medications. 1. Vitamins: generally B vitamins, which can nourish the nerves and help promote the normalization of phrenic nerve function. 2. Nerve growth factor: Supplementation with neurotrophic and neuroprotective agents can help promote the growth and development of nerve cells. 3. Cytidine: It helps to promote lecithin biosynthesis and anti-phospholipase A effect, which helps to promote nerve recovery. Adverse effects of Cytarabine include decreased blood pressure, chest tightness, and dyspnea. Adverse effects of nerve growth factor include localized pain and urticaria, etc. It is contraindicated for those who are allergic to nerve growth factor; adverse effects of B vitamins include skin flushing and itching, etc. It should not be taken for a long period of time. In addition, the application of the above drugs, all have certain risks, it is recommended that patients need to get the guidance of a specialist.