Decrease in the concentration of potassium in the blood, which must be regulated by diet. Cialis - an erythematous, slightly itchy and hot to the touch papule or limited moderately painful induration at the injection site; b) in a generalized form, characterized in severe cases by urticaria (earlier appearing and more pronounced on the skin of the face and neck), itching of the skin, erosive lesions of the mucous membranes of the mouth, nose, eyes, nausea, vomiting and abdominal pain, as well as fever and chills.