supraventricular tachycardia
"I am on 240 mg once a day, Been taking meds since Feb 2011. Works GREAT for treating the heart problem only I have side effects. A week after starting the medication at the lowest dosage I developed sinus congestion. Increased my medication after six months and the congestion continued and now developed sinus drainage down my throat that caused a cough. Medicine was increased again and now the congestion/cough/wheezing is getting unbearable. I took myself off the medicines and within 4 days all my symptoms were GONE!"