In any action commenced pursuant to Section 6-5-391 or Section 6-5-410, against a health care provider whether in contract or in tort based on a breach of the standard of care the amount of any judgment entered in favor of the plaintiff shall not exceed the sum of $1,000,000. Any verdict returned in any such action which exceeds $1,000,000 shall be reduced to $1,000,000 by the trial court or such lesser sum as the trial court deems appropriate in accordance with prevailing standards for reducing excessive verdicts. During the trial of any action brought pursuant to Section 6-5-391 or 6-5-410 neither the court nor any party shall advise or infer to the jury that it may not return a verdict in excess of $1,000,000; in the event the jury is so advised or such inference is made the court, upon motion of an opposing party, shall immediately declare a mistrial. The maximum amount payable under this section, $1,000,000, shall be adjusted on April fifteenth of each year to reflect any increase or decrease during the preceding calendar year in the Consumer Price Index of the United States Department of Commerce. Said adjustment shall equal the percentage change in the Consumer Price Index during the preceding calendar year.