A psych patient with abdominal tenderness and distention has the following abdominal film. Which drugs are radiopaque on xray?

  

Remember the mneumonic CHIPES:

C – Calcium Carbonate, chloral hydrate

H – Heavy metals – mercury, lead

I – Iron and Iodine

P – Phenothiazines (includes antipsychotics like chlorpromazine (thorazine) and antiemetics like prochlorperazine (compazine))

E – Enteric coated pills

S – Sustained Release preparations [Lithobid and K-Dur]

Reference: https://umem.org/educational_pearls/1057/ (posted by Fermin Berrueto 4/2010)