Auvitra 20 mg contains vardenafil 20 mg as its main salt to treat erectile dysfunction in men.This allopathic medicine is lighter in dosage as compared to other ed medicines.This is good to start as for a beginner.This medicine belongs to the PDE5 inhibitors gruop .Boys under the age of 18 are not allowed to take this ed medicine.This medicine does not affect any fertility so it is safer to use.This is not for the use in women and children.Store it in a cool and dry place away from the moisture.If you are taking any nitrates then you must not take this.This medicine is manufactured by Aurochem laboratories.