Sildenafil Combined With Other ED Drugs
Sildenafil cannot be combined with other ED drugs. Their combination is a direct contraindication as, first of all, their effect is similar and secondly, they provide a burden on the heart. This burden may be excessive contributing to a sudden heart attack.
Firstly, all three ED medications are the most popular drugs for the treatment of erectile dysfunction (inability to achieve and maintain the erection necessary to perform normal sexual intercourse). These drugs act in a situation when the patient naturally experiences sexual excitement. In other words, these drugs affect the natural mechanism of erection, allowing the patient to feel confident and comfortable at all stages of sexual intercourse. This aspect destroys the myth that these drugs have some unnatural properties that can put a man in an awkward position. The mechanism of action of all three drugs: Viagra, Cialis, and Levitra is the same (in general terms).
Secondly, a single dose of one tablet per day is sufficient for Viagra, Cialis or Levitra. The dosages for each drug are different. Thus, Viagra (sildenafil) is available in dosages of 25, 50 and 100 mg. Levitra is available in a dosage of 10 mg of the active substance (vardenafil). Cialis is found mainly in the dosage of 20 mg (tadalafil) (there are also doses of 10, 5 and 2.5 mg).
A significant difference is the rate of the therapeutic effect onset, the duration of action of each of the drugs. So, Sildenafil (Viagra) is usually taken 1 hour before the planned sexual intercourse. The effect lasts about 4 hours. The intake of fatty foods and alcohol abuse may reduce the effectiveness of sildenafil. It will significantly enhance the possible side effects. Its advantage is the lower price in comparison with newer competitors.