BillP
Senior Member
Kim:I remember when I did my OW course years ago my instructor told me that you shouldn't use decongestants when you are diving. If I remember correctly it was to do with them losing effect UW and then the chance of congestion occuring which could cause all kinds of problems.
You've hit on a pet peeve of mine. I could see someone making a case for a statement something like, "You shouldn't take a decongestant like Sudafed (pseudoephedrine) and dive if you couldn't otherwise dive (at all) without the Sudafed. The decongestant effect might turn out to be insufficient and you could have problems with a squeeze during the dive." Yeah, OK, I guess that makes sense.
I can see no justification for the warning that you more often see when folks say, "You shouldn't ever take a decongestant and dive because the decongestant might wear off during the dive." That's like saying, "You shouldn't ever scuba dive because your air might run out during the dive." People who are too stupid to tell time and figure out when their 12 hour decongestant is likely to lose effect are too stupid to monitor their air supply and simply should not dive, period.
Many many people take decongestants safely and successfully to facilitate their diving and make it easier to clear. (And yes, many take them along with motion sickness meds like Bonine.) Many diving physicians recommend decongestants like Sudafed (and motion sickness meds like Bonine) for divers.
Of course any medication that is strong enough to have an effect can also have side-effects. Proper precautions should be taken and the potential risks of the medication weighed against the potential benefits. People like Bibendum who are bright enough to ask good questions and pay attention to the answers will likely do fine. For other folks, sometimes it's just easier to tell them "Don't ever do that" to protect them from themselves. (I'm not pointing any fingers at you, Kim, but I'll bet that's what happened somewhere along the line of your instructor's training.)
Just my 2¢,
Bill