The Viagra in pill form has a bitter alkaloid taste, slow absorption from the gastrointestinal tract, which sometimes could produce an unpredictable absorption rate. Better absorption can occur on an empty stomach of at least two hours, which could mean more careful planning would be needed for sexual activity. It takes 30 minutes for the drug to begin absorbing and assuming the stomach is empty should reach his peak in one hour and maintain it's action maximally for up to four hours. Food contents, on the other hand, will slow the absorption and may require two plus hours before one reaches maximal levels in the blood and therefore for some men maximal abilities to become erect. If a physician has a relationship with a patient and a prescription to compound a drug in a new format or delivery system is sent to a compounding pharmacist, a drug may be produced in this new format or delivery by a licensed compounding pharmacist.
Patients can check with their health care providers about compounding pharmacists.
Urgent Care Pharmacy , which does compounding, in Spartanburg, South Carolina, has developed a new delivery system for Viagra. It involves taking Sildenafil produced by Pfizer, which has the patent rights to Sildenafil and mixing this drug into a proprietary dissolvable mint tasting sublingual tablet that when placed under the tongue is absorbed by the lining of the mouth and the tongue. Usually, then within 10 to 15 minutes, the drug is absorbed giving sufficient blood levels to allow for sexual stimulation to produce an erection in most cases. The advantages include short term planning of sex and no concern for stomach contents. Some urologists say the effects are similar to the Viagra tablet.