Levitra 20 mg (Vardenafil) is used to treat male sexual function problems (impotence or erectile dysfunction -ED). In combination with sexual stimulation, vardenafil works by increasing blood flow to the penis to help a man get and keep an erection. This drug does not protect against sexually transmitted diseases. Levitra (also known as Vardenafil) is in many respects similar to the famous Viagra and was made to help men with impotence. However this drug doesn't treat erectile dysfunction as is, it helps man to get a strong erection before sexual contact. For the last few years, lots of medicines appeared on the market for patients with ED. The first “FDE-5 inhibitor” to emerge in the world market was Viagra. Levitra became the second medicine in this field, at first in the USA, and then all around the world. Cialis was the third one. While moderate alcohol consumption is unlikely to significantly interact with Levitra, excessive alcohol intake can increase the risk of adverse effects such as dizziness, headache, and orthostatic hypotension (drop in blood pressure upon standing). Therefore, it is generally advisable to limit alcohol consumption while taking Levitra to minimize the risk of side effects and maximize the effectiveness of the medication.