Elidel is the trade name, generic name is vardenafil hydrochloride tablets, vardenafil hydrochloride tablets can not be taken 40mg at a time. The main ingredient of vardenafil hydrochloride tablets is vardenafil hydrochloride, which is indicated for the treatment of erectile dysfunction in the male penis. The drug can be increased to 20mg or decreased to 5mg but not increased to 40mg depending on efficacy and tolerability.The maximum recommended dose of the drug is 20mg per day, and overdosing may result in the development of adverse drug reactions. It is important to note that vardenafil hydrochloride tablets are contraindicated in people with allergies to any of the components of the drug (active or inactive), people taking nitrates or nitric oxide donor therapy, etc., and patients may experience adverse reactions such as headache and nausea after taking the drug. It is recommended that patients should use vardenafil hydrochloride tablets according to the instructions or under the guidance of a doctor, do not use the drug without authorization, to avoid delaying the condition.