Can Zyrtec make you constipated?

Common side effects of Zyrtec include: drowsiness, fatigue, dizziness, dry mouth, sore throat, cough, nausea, constipation, or headache. In children, stomach pain and vomiting may occur. Zyrtec is available as regular tablets and chewable tablets (5 mg and 10 mg) and syrup (1 mg/mL). read more

Predict new side effects and undetected conditions when you take Zyrtec and have Constipation. You are not alone. read more

Antihistamines: As mentioned in #2, Claritin, Zyrtec and Allegra are the allergy meds you can get over the counter that may stop you up. Antidepressants: this will depend on which antidepressant you are taking but these are common offenders. read more

Constipation can also cause mucous in the stool. Fatty foods can cause mucus in the stool. Certain food allergies or food intolerances can also cause mucus in the stool, especially lactose intolerance. Gas is a common sign in cases of food intolerances. You mention "turds", which I assume are small, firm, round balls, which indicates constipation. If I were you, I would keep a food diary. read more