Buy Viagra The active ingredient of Viagra is sildenafil citrate, and revolutionary molecule first synthesized in order to encourage the male erection. It acts on the vascular structures of the penis, called "corpus cavernosum", facilitating the flow of blood within them and thereby allowing an erection. The intake of Viagra facilitates erection, helps maintain it during the sex act, increase the tone of rigidity of the penis and helps to more easily obtain a second erection after ejaculation. The tablet should be taken away from the meal possible and, after about 50 minutes, a sufficient concentration of the drug reaches the corpus cavernosum and, with excitement, the erection is facilitated. The effect has a duration that may range from 4 to 6 hours. The intake of Viagra facilitates erection, helps maintain it during the sex act, increase the tone of rigidity of the penis and helps to more easily obtain a second erection after ejaculation. The tablet should be taken away from the meal possible and, after about 50 minutes, a sufficient concentration of the drug reaches the corpus cavernosum and, with excitement, the erection is facilitated. The effect has a duration that may range from 4 to 6 hours. The intake of Viagra have to be authorized, a The intake of Viagra have to be authorized, after a careful clinical evaluation, the doctor. The drug must be absolutely avoided in patients who have had a heart attack, those in which sexual activity is not recommended, which are suffering from a rare eye disease (retinitis pigmentosa) or are taking medications that nitro-derivatives. Viagra is generally well tolerated. If you have any side effect, this can be mild and temporary. Some possible common side effects are headaches, stomach shaken, urinary tract infections, increased sensitivity to the colors green and red, diarrhea.
Buy Cialis The Cialis is marketed in tablets light yellow film coated, shaped like a diamond. The recommended dose is one tablet of 10 mg before sexual activity. If the effect of this dose is too low, your doctor may increase the dose to 20 mg. The tablets of Cialis should be taken by mouth with a little 'of water, regardless of the food. You can take the tablet of Cialis at any time from 30 minutes to 12 hours before sexual activity. Cialis, in fact, can still be effective up to 24 hours after taking the tablet. The drug acts only if there is sexual stimulation. You should not take Cialis more than once a day and the daily use of Cialis is strongly discouraged. The most common side effects after his recruitment are headache and digestive disorders. The side effects are less commonly reported: back pain, muscle aches, nasal congestion, flushing of heat to the face and dizziness. Effects are not common: swelling of the eyelids, sore eyes and red eyes. They could also show allergic reactions (including rash). In rare cases, after taking Cialis, it is possible that there might be an erection long and perhaps painful. If the 'erection of this type lasts longer than 4 hours, you should contact a doctor immediately.
Buy Levitra The latest is Levitra (Vardenafil), which is in the orange tablets. Again, the recommended starting dose is 10mg of first sexual activity. If the effect of this dose is too low, your doctor may increase the dose to 20 mg. The tablets of Levitra should be taken by mouth with a little 'water, better avoiding meals high in fat. The duration of how long it is not that of Cialis, but "limits" for 8-10 hours. The most common side effects are headache, hot flushes to the face, nasal congestion and nausea.