The following safety conditions can have an effect on the dosage you are prescribed and need additional tests to be done: retinitis pigmentosa, coronary artery illness, heart tempo problems, kidney disease, a past of a cardiovascular disease, heart disease, bodily defect of the penis, liver disease, hemorrhaging ailment, very high or reduced blood tension, belly lesion, a history of a movement, heart rhythm disorder, coronary infarction, and some red blood cell condition.

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