Levitra is a phosphodiesterase inhibitor medication, used for treatment of erectile dysfunction (or impotence). The medication helps men to achieve as well as maintain an erection by relaxing muscles and increasing blood flow to the penile tissue during a sexual intercourse. This effect of Levitra is achieved only in response to sexual stimulation.
Since the medication should be taken when needed – about 60 minutes before a sexual intercourse – there is no need of dosing schedule, as a rule. You can take Levitra with or without food, once a day. The interval between two doses of Levitra should be 24 hours. If you have such health conditions as high/low blood pressure, heart diseases, stomach ulcer, liver/kidney disease, eye problem or a physical deformity of the penis, the dose of Levitra will need to be adjusted by your doctor.
You should contact your doctor if after using Levitra your erection is painful or lasts over 4 hours. This condition may damage the penis. While taking Levitra avoid using grapefruit or grapefruit juice, drinking alcohol, and taking other medications for treatment of erectile dysfunction, unless prescribed by your doctor. The mentioned products interact with Levitra and can increase its side effects. Such medications as antidepressants, antibiotics, antifungal drugs and those for treatment of heart diseases and high blood pressure, as well as HIV/AIDS medications can also interact with Levitra and cause adverse reaction.
If after using Levitra you develop any of the following severe side effects during sexual intercourse, seek emergency medical help: pain or numbness in the chest, neck, jaw or arm, nausea, dizziness. Levitra can cause also such severe side effects as chest pain, changes of hearing/ vision with sudden loss of one or the other, shortness of breath, seizure, swelling of hands and feet, irregular heartbeat, and fainting.