Dear Marsha, Hi & Welcome.
Yes, Zyrtec and Aspirin can be taken together as there's no harmful interaction between the two prescribed medications.
Similarly medications like
Pravastatin, Pepcid,
Oxybutynin also do not interact with Zyrtec hence can be taken together safely.
However, there can be harmful interactions if Zyrtec is taken along with Lomotil and Benadryl as it may increase
drowsiness, sleepiness, impaired concentration and thinking, and motor
incoordination which can be harmful if involved in activities requiring mental alertness such as driving or operating certain machines. It may also cause blurring of the vision, dry mouth, increase in heart beats,
constipation, retention of urine, etc.
So, it's better to avoid taking Lomotil and Benadryl as long as you take Zyrtec.
Hope this will help.
A feedback is appreciated.