Michael Lynn Bradden, Texas inmate No. 1171646, has appealed the dismissal of his in forma pauperis (IFP) civil rights complaint pursuant to 28 U.S.C. § 1915A(b). Section 1915A directs the district court to dismiss sua sponte any frivolous complaint filed by a prisoner against a “governmental entity or officer or employee of a governmental entity.” 28 U.S.C. § 1915A(b). A complaint is frivolous if it lacks an arguable basis in fact or if it is based on an indisputably meritless legal theory. Berry v. Brady, 192 F.3d 504, 507 (5th Cir. 1999).

Bradden alleged that he was denied prescription medication in deliberate indifference to his serious medical needs. The magistrate judge ** held that the com *436 plaint was frivolous because Bradden’s claims lacked an arguable legal basis. Bradden has failed to demonstrate that the defendants were deliberately indifferent to a serious medical need or that the magistrate judge erred by dismissing the complaint as frivolous. Velasquez v. Woods, 329 F.3d 420, 421 (5th Cir. 2003); Domino v. Texas Dep’t of Criminal Justice, 239 F.3d 752, 756 (5th Cir. 2001). Accordingly, we affirm the dismissal of the complaint.

The dismissal of the complaint and this court’s affirmance of the dismissal count as one strike against Bradden for purposes of 28 U.S.C. § 1915(g). See Adepegba v. Hammons, 103 F.3d 383, 387-88 (5th Cir. 1996). Bradden is warned that, should he accumulate three strikes, he will be barred from proceeding IFP in any civil action or appeal filed while he is incarcerated or detained in any facility unless he is under imminent danger of serious physical injury. See 28 U.S.C. § 1915(g).

AFFIRMED; SANCTION WARNING ISSUED.