Tinnitus caused by taking sildenafil is considered to be related to the adverse reaction of the drug, and may also be caused by injury in the ear or other factors. It is recommended to stop taking the drug and go to the ENT department of the hospital as soon as possible for treatment of the primary disease. 1. Adverse effects of the drug: sildenafil is a drug for the treatment of pulmonary arterial hypertension, after taking it, there may be adverse effects, such as hearing loss, loss, tinnitus, dizziness and other symptoms. You can stop taking the drug. If the symptoms can be alleviated, it is considered to be related to the side effects of the drug, and it is recommended to try not to take this kind of drug in the future. 2. Injury to the inner ear: Injury to the inner ear, losing the function of transforming sound energy, may cause tinnitus. It is recommended to go to the ENT department of the hospital for hearing examination, after a clear diagnosis, under the guidance of the doctor to give vitamin B1, methylcobalamin and other drugs can be applied to dilate blood vessels to improve circulation and promote nerve fiber regeneration of drugs. 3. Other factors: hypertension, hyperlipidemia, cerebral arteriosclerosis, etc., resulting in poor blood supply and circulation, may produce tinnitus. It is recommended to have a light diet and also to treat the original disease. To summarize, there are many causes of tinnitus, and patients are advised not to use drugs blindly. If tinnitus occurs when taking sildenafil, it is necessary to stop the drug immediately and go to the ENT department of the hospital as soon as possible for examination and standardized treatment.