There is a new Target coupon available on Target.com for $2.00 off Zantac.  It can be stacked with a Manufacturer coupon to make an extreme coupon deal.
Note: Prices may vary depending on your area.

Zantac 150 mg, 24-30 ct $7.59 – $8.39, Regular Price
Use $2.00/1 – Zantac Heartburn Relief Item, 24ct or Larger, Target Coupon – (target.com)
And Use $5.00/1 – Zantac Heartburn, 24 ct or larger – (zantac.com)
or Use $5.00/1 –   Zantac Heartburn, 24 ct or Larger – (smartsource.com)

Final Price: As low as $0.59