Yes, people have died from prescription drugs; usually through either improper usage on their part, misdiagnoses on the part of the physician, an impurity in the drug, or an undetected allergy.
On the other hand, the percentage of success versus failure, when it comes to having a genuine medicinal benefit, is vastly superior to homeopathy or for that matter the bulk of "alternative medicines", even with the placebo effect taken into account. This is because these medications are tested, re-tested, and based on very sound evidence on how the human body and various substances work in combination. Homeopathy, on the other hand, is based on something which is completely contradictory to any and all objective evidence. It is, in a word, a crock.
And while "all doctoring and medicine is homeopathic in its original nature" may be true in essence (if we are truly talking about the origins of any such practice, some of which goes back so far into the mists of time that we aren't even sure how early they began), this is true of any branch of human knowledge: astronomy began as astrology; chemistry began as alchemy; and so forth. But... they have come a long, long, long way since then, and have changed their nature almost completely... when it comes to procedures or substances which are generally accepted by the medical or scientific community as of genuine efficacy of themselves (again, setting the placebo effect aside). When it comes to those "alternatives"... most of them have failed repeatedly to pass muster when tested scientifically. Those which do are investigated further, and eventually either adopted into such usage, or discarded when the evidence begins to mount against them.
Anecdotal evidence is, to be blunt, not worth a good damn unless it is backed by other sources; the one with the best track record being rigorous, double-blind, scientific testing. And for the record: a good many people have died over the years by relying on such methods rather than those which have met such rigorous testing. Whether they would have survived given the latter cannot be said with absolute certainty, but given the evidence, their chances of doing so would have been vastly improved. We do know that every year numbers of people, including children, die from treatable diseases which are often easily survivable, just because their parents (or the children themselves, with either their parents' permission, persuasion, or coercion) rely on such methods rather than tried and tested medical procedures. Homeopathy, along with so many of them, relies on the gullibility and scientific illiteracy of the populace and, as has been said many times before, anyone or anything which banks on that is sure to never lack adherents....