There is no uniform pricing for tadalafil or sildenafil tablets in the market at present, with the price of each box of tadalafil tablets ranging from 130 to 900 yuan and that of sildenafil tablets ranging from 20 to 900 yuan. Tadalafil tablets are clinically available at 5mg, 10mg or 20mg per tablet, with specifications ranging from 1 to 28 tablets per box; sildenafil tablets are available at 50mg or 100mg per tablet, with specifications ranging from 1 to 10 tablets per box. Prices may vary among different specifications, manufacturers, sales regions and dealers. For details, please refer to the selling price in local hospitals, and it is recommended to purchase from regular medical institutions. In addition, it should be noted that tadalafil tablets and sildenafil tablets belong to the type 5 phosphodiesterase inhibitors, suitable for the treatment of erectile dysfunction in men, but this kind of drug is prohibited in the person who is allergic to it, or isosorbide mononitrate, nitroglycerin, nitrate and other nitrate drugs are used, the use of medication may be headache, dyspepsia, and other adverse reactions. Therefore, if there is a need for tadalafil tablets or sildenafil tablets, they must be used under the guidance of a professional doctor, do not blindly take the drug or increase or decrease the dosage on their own, so as not to cause adverse consequences.