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If you experience sudden decrease or loss of vision or your vision is distorted, dimmed while you are taking CIALIS, stop taking CIALIS and contact your doctor immediately. It is important to tell your doctor about any heart problems you have now or may have had in the past. This medicine can cause serious side effects in patients with heart problems.
Oxytocin, a hormone released during sexual arousal, is believed to contribute to sexual pleasure and satisfaction. Certain groups of people are more