I took Sinarest for my cold and runny nose, but since then, my throat feels unusually dry and a bit uncomfortable. I’m not sure if it’s because of the medicine or just my cold getting worse. Is this something to worry about?
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Yes, experiencing a dry throat or mouth after taking Sinarest is normal and is a known side effect of the medication. It is highly likely caused by one of the active ingredients, not your cold getting worse. If the dryness is severe, painful, or if you have any other concerning symptoms, you should consult your doctor.
Why This Happens: Sinarest contains an antihistamine (like Chlorpheniramine Maleate) to help stop your runny nose and sneezing. A common characteristic of older-generation antihistamines is an anticholinergic effect, which means they can reduce the production of saliva and mucus throughout your body.
When the medication dries up the excess secretions causing your runny nose, it can also, unfortunately, dry out the other mucous membranes, including those in your mouth and throat, leading to the feeling of a dry or parched throat (dry mouth).
What You Can Do: This side effect is generally mild and temporary. To manage it:
Stay Hydrated: Sip on water, clear liquids, or soups.
Gargle: Warm salt water gargles can help soothe a dry or irritated throat.
Use Lozenges or Sugar-Free Gum: These can help stimulate saliva production.