Prescribed 10 day course ($113!!!!) for severe pneumoia, despite ...

Prescribed 10 day course ($113!!!!) for severe pneumoia, despite requesting to first try some I knew I tolerated well from past experience. (I smell kick backs here.) Within an hour of taking the first dose, I had horrible muscle pains and cramping. My intercostals (ribs) cramped so badly, all I could do was gasp for breath in tiny little pants, each of which felt like getting kicked in the ribs. Tachacardia, mild cynaosis. I began coughing up froth (sign of pulmonary edema.) After 4 hrs (and some codine) the pain gradually subsided. Now, I'm no quitter, so I went on line and did some reading and realized the problem most likely was a potassium (K) deficiency. I loaded up on K and tried again. Very painful, but no cramping. Began to have chest pains. Insomnia. Third day: Same as second except towards the end of the day, my heart began beating wildly and arrhythmically. I could feel it banging against my chest wall. Wildly erratic. Still coughing up white foam. Sharp chest pains. Insomnia. Normal rhythm gradually restored over 12 hr period but rate very high. Needless to say, I have discontinued the course. Adding a tad of insult to injury, the usage info given by pharmacist was pretty much dead wrong. His complete instuctions: One a day on empty stomach. No vitamins Avoid sun. Not a word about additional water, that the no vitamins was only for two hours before or two hours after dosing, that I should quit immediately if I experienced severe muscle or chest pain, swelling, skin rash or allergic reactions. And it makes no diff if your stomach is empty or not. My advice is to tell your MD to make his marketing perks at someone else's expense and give you something safe and affordable. If you must take it, make sure you are K loaded before hand and stay that way. Drink lots of water. TM - 53 - male - generally excellent health. Never had the slightest adverse rx to any med before this. Never bashed any med before and am not bashing this one. Just relating my experience. Be well.