Patients should be advised to contact the prescribing physician if other anti-hypertensive drugs or new medications that may interact with LEVITRA are prescribed by another healthcare provider. Its effects might last longer if you have mild to moderate ED. These medicines all work well for ED. Read more Dosage of Levitra 10 MG Overdose It is advisable to not take multiple doses within the 24 hour period of taking the previous dose. Kindly consult your doctor regarding the same.Oral medicines for ED usually work well and cause few side effects. The four main medicines taken by mouth for erectile dysfunction are: Avanafil (Stendra). Sildenafil (Viagra). Tadalafil (Cialis). Vardenafil. These medicines are called PDE5 inhibitors. You should consult your health care professional before taking any drug, changing your diet, or commencing or discontinuing any course of treatment. Vardenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, vardenafil w. The typical starting dose is 10 mg by mouth about 1 hour before sexual activity. Your provider will adjust your dose based on your response. The maximum dose is 20 mg. Vardenafil shouldn’t be taken more than once a day at any dose.