Always carry at least 6 caplets.
It can save your life.
Allergic anaphylactic shock can happen at any time to anyone. Severe allergic reactions many times are discovered by accident.
From single to multiple stings to the discovery you have a severe food allergy Sudafed can help.
When you have a severe reaction within minutes hives form and your blood pressure starts dropping out.
If your breathing is affected you have an even worse medical emergency. Epinephrine (adrenaline) is best, but Sudafed will do in a pinch if no epinephrine is close at hand. https://www.ncbi.n...ticles/PMC3666145/
I developed an allergy to shrimp. The first time I just got a mild case of hives on my hands. The next time, more severe hives and my BP started falling out. I barely was able to swallow 3 caplets of Sudafed (generic, it's cheaper) as my vision was tunneling in even sitting. Within 10-15 minutes I felt good enough to continue driving.
I doubt it would have killed me if I hadn't used the Sudafed; my breathing wasn't affected.
Pretty sure I would have been taking a long nap though until my BP came back up.
Being the bastard I am, I didn't stop eating shrimp; oddly my reaction to it abated.
Never had to use Sudafed again for it.
I carry it now primarily for bee/scorpion stings as it will help the localized minor symptoms but also help treat anaphylactic shock should it progress to a systemic reaction.
Note: try one caplet to see how you react to it before depending on.
May make females drowsy; this is an atypical reaction as it is a stimulate, however I know quite a few women who experience this side effect.