Allergic drug reaction

Allergic reactions to drugs can vary widely since there are tens of thousands of different medications on the market at any given time. Symptoms include the following and should be immediately reported to your doctor:

  • Nausea, vomiting, or sudden abdominal pain or tenderness
  • Shortness of breath or overall difficulty breathing
  • Rapid or slowed pulse
  • Swelling of lips, tongue, throat, or face
  • Hives or other areas of swollen, tender skin
  • Yellow eyes or skin
  • Unusual fatigue or weakness

Some of these, like a ballooning throat or difficulty in breathing, mean you should seek help quickly, whether or not you can reach your physician. Most allergic reactions appear shortly after you first begin to take a medication, but it is possible to have an allergic reaction to a medication you've taken before without incident.

Problems with Cialis

Often referred to as "weekend Viagra", Cialis (also called Tadalafil) is one of the male potency drugs. It acts to relax the muscles in and around the penis and to increase blood flow, allowing a man to achieve and maintain an erection.

You need to contact your doctor immediately if you experience either of the following, after taking Cialis:

  • Erections that last longer than four hours
  • Tingling sensations, jaw or chest pain, shortness of breath, or other unusual symptoms during sexual activity

You can find more information about Cialis side effects here.