When Pam McClure learned she’d save nearly $4,000 on her prescription drugs next year, she said, “it sounded too good to be true.” She and her husband are both retired and live on a “very strict” budget in central North Dakota. By the end of this year, she will have spent almost $6,000 for her medications, including a drug to control her diabetes. McClure, 70, is one of about 3.2 million people with Medicare prescription drug insurance whose out-of-pocket medication costs will be capped at $2,000 in 2025 because of the Biden administration’s 2022 Inflation Reduction Act, according to an Avaler…