MEMORANDUM **
California state prisoner Luke Waine Caines, Jr. appeals pro se from the district courts dismissal of (1) his claim under 42 U.S.C. § 1983 alleging deliberate indifference to a serious medical need with prejudice and (2) his associated state law claims without prejudice. We have jurisdiction under 28 U.S.C. § 1291. We review the dismissal of Cainess federal claim de novo, see Kennedy v. S. Cal. Edison, Co., 268 F.3d 763, 767 (9th Cir. 2001), and for abuse of discretion the district courts decision to decline to exercise supplemental jurisdiction over his state law claims after dismissing his federal claim. Costanich v. Dept of Soc. & Health Servs., 627 F.3d 1101, 1107 (9th Cir. 2010). We affirm.
The district court properly dismissed Cainess claim of deliberate indifference to a serious medical need because Caines did not allege facts sufficient to state a plausible claim. It is not enough to allege that Interian should have known that Caines suffered from a bone spicule and oroantral fistula—to sustain a claim the prison official must “know[ ] of and disregard[ ] an excessive risk to inmate health or safety; the official must both be aware of facts from which the inference could be drawn that a substantial risk of harm exists, and he must also draw the inference.” Farmer v. Brennan, 511 U.S. 825, 837, 114 S.Ct. 1970, 128 L.Ed.2d 811 (1994). Nor does an official violate a prisoners Eighth Amendment rights when prescribing a medication that he has no reason to believe will result in an adverse reaction. Toguchi v. Chung, 391 F.3d 1051, 1059–60 (9th Cir. 2004). Finally, Cainess allegations of a delay in surgery, without any evidence that the delay “caused substantial harm,” cannot support a deliberate indifference claim. Wood v. Housewright, 900 F.2d 1332, 1335 (9th Cir. 1990).
The district court did not abuse its discretion in dismissing Cainess state law claims for lack of supplemental jurisdiction after dismissing his constitutional claim. See San Pedro Hotel Co. v. City of Los Angeles, 159 F.3d 470, 478 & n. 12 (9th Cir. 1998) (quoting 28 U.S.C. § 1367(c)). Even if we were to construe Cainess claims as constitutional claims, as he argues, the district court was correct to dismiss them. Negligence is not a sufficient ground for a constitutional violation, Toguchi, 391 F.3d at 1057, and Cainess alleged “mental and emotional injury,” does not rise to the level of a “serious medical need.” Doty v. Cty. of Lassen, 37 F.3d 540, 546 & n.3 (9th Cir. 1994) (mental health conditions must also reach the requisite level of seriousness).
AFFIRMED.