<prompt> Raltegravir can cause ?HypokalemiaHypocalcemiaHyperkalemiaHypercalcemia  <response>: Ans. is c i.e., Hyperkalemia Myopathy muscle pain, tiredness and rhabdomyolysis. Skin reactions. Allergic reactions. Liver problems. Immune reconstitution inflammatory syndrome IRIS. Nonspecific : nausea, vomiting, diarrhea, headache. No textbook has mentioned any electrolyte abnormality as a side effect of raltegravir. So, I had to find the answer of this question indirectly. Raltegravir can cause rhabdomyolysis, in which there is hyperkalemia. 