Thumb Score: +17

Amazon [amazon.com] has 30-Ct Amazon Basic Care All Day Allergy Cetirizine Hydrochloride Tablets (10 mg) for $2.24 – 15% when you ‘clip’ the coupon on product page – 5% when you check out via Subscribe & Save = $1.79.
Shipping is free with Prime or on $35+ orders.

Price
$1.15 lower (39% savings) than the typical price of $2.94