Chronic Phyllocontin toxicity…

I was first prescribed Phyllocontin Continus, at 450mg every 12 hours, in 1980. For the next couple of years the hospital monitored my serum Theophylline levels to make sure the dose was both safe and effective (with Phyllocontin, the difference in serum levels between effective and toxic is tiny, hence the testing). I was very [...]

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