Read more about the 1960 Oldsmobile. Check the label of all the cold and flu medications you're taking to make sure you're not taking more than the recommended dose of any particular active ingredient. idaho falls traffic report There are 7 disease interactions with Claritin-D (loratadine / pseudoephedrine) which include: cardiovascular disease; renal/liver disease; GI narrowing; PKU; BPH; diabetes; glaucoma Taking Claritin with NyQuil may increase your risk of side effects Dizziness It’s essential to be aware of these side effects and to avoid driving or operating heavy machinery while taking these medications. Find patient medical information for NyQuil oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. So, if you're also taking Dayquil (which contains the decongestant pseudoephedrine) for cold symptoms , you might not get the full benefit of the Claritin right away. popcorn smelling urine