Viagra 100 mg (Sildenafil) by Pfizer: results, dosages and side effects

Viagra 100 mg is an oral drug manufactured by Pfizer, Turkey and containing active substance Sildenafil Citrate which represents a phosphodiesterase type 5 inhibitor. It works by helping to increase blood flow into the penis during sexual stimulation. Sildenafil assists men in maintaining the erection and works by removing the blockages in the arteries of the penis thereby leading to free flow of blood to the sex organ. Viagra should be taken only once per day and in most cases 30 min - 2 hours before the sexual intercourse. The usual dosage is 50 mg daily and can be increased to 100 mg daily. The main side effects of Viagra are: diarrhea; dizziness; flushing; headache; heartburn; stuffy nose; upset stomach and allergic reactions like difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; rash; hives and itching. Viagra 100 mg comes in boxes, each unit containing 14 pills (100 mg/pill).