I have been on Sildenafil for 2weeks now. On 1 morning, 1 evening and supposedly building up to 3 a day. I have been on medication for many years for blood pressure and it has behaved really well. May be coincidental...... but since taking Sildenafil my bp has risen and and doesn't seem to be levelling out. Been pretty dizzy too. Has anyone else had similar symptoms. Or can anyone give any advice. I do see Rheumatologist Tuesday. Thanks so much guys.