If Codeine is chemically similar, would someone allergic to codeine be adversely affected by hydrocodone in any way? Also, why is additional caution stressed in prescribing hydrocodone to someone elderly and/or someone with COPD?
Being allergic to codeine does not mean you are allergic to hydrocodone. It can depress respirations and that is why caution is advised in copd. The elderly its because they may not excrete it as well and get toxic.
Even though hydrocodone is synthesized from codeine, there are plenty of people with codeine allergies who can take hydrocodone with no problem, my mother being one. She's allergic to codeine, but she's been taking hydrocodone for at least 20 years now with no problem.
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