[UNPUBLISHED]

Arkansas inmate Troy Lawson appeals the district court’s 1 adverse grant of sum *501 mary judgment in his 42 U.S.C. § 1983 action, in which he claimed inadequate treatment of HIV by Correctional Medical Services (CMS) personnel. 2 Having carefully reviewed the record, see Johnson v. Blaukat, 453 F.3d 1108, 1112 (8th Cir. 2006), we conclude that summary judgment was proper. While the record showed that prescribed antiviral medications were occasionally not given, Lawson failed to rebut evidence that his HIV status had not worsened, and he offered no evidence showing that the named CMS defendants were the ones who administered medications or that the missed doses were deliberately withheld without appropriate reasons. See Estelle v. Gamble, 429 U.S. 97, 105-06, 97 S.Ct. 285, 50 L.Ed.2d 251 (1976) (inadvertent failure to provide medical care does not amount to wanton and unnecessary infliction of pain); Laughlin v. Schriro, 430 F.3d 927, 929 (8th Cir. 2005) (objective seriousness of delay must be measured by reference to effect of delay, which must be shown by verifying medical evidence). Even gross negligence is an insufficient basis for an Eighth Amendment claim. See Alberson v. Norris, 458 F.3d 762, 765 (8th Cir. 2006).

Accordingly, we affirm. See 8th Cir. R. 47B. We also deny Lawson’s motion for appointment of counsel.