Mama, I really think you should check with your doctor first before buying, sometimes they can prescribe cheaper alternatives or may have samples, especially kung prescription lang siya. A few of my mum friends found na mas tipid pa rin bumili through their OB or sa community health center kaysa sa pharmacy.
Hindi ko ma-recommend ng specific medicine names o alternatives, pero definitely ask your doc about generic options or payment plans, maraming paraan kung paano makakatipid, and sila ang best person to guide you dito. Sending you strength, mamsh!