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Mild hyperkalemia can be effectively treated with a single 60-g oral dose of SPS as monotherapy, with minimal risk of hypokalemia. Moderate to severe hyperkalemic episodes warrant alternative therapy. The potassium-lowering effect is correlated to SPS dose and is independent of interindividual characteristics.

No significant differences in HDMTX-associated hospital length of stay, MTX clearance, or rates of nephrotoxicity were noted between patients in the urine pH of 7 or higher and 8 or higher groups. Interacting medications and higher MTX dose were associated with delayed MTX elimination, suggesting that a closer review of interacting medications before HDMTX administration may be warranted.

BackgroundDespite recent advances in hepatitis C (HCV) treatment, specifically the addition of direct acting antivirals (DAAs), pegylated interferon-alpha remains the backbone of HCV therapy. Therefore, the impact of DAAs on the management of co-morbid psychiatric illness and neuropsychiatric sequalae remains an ongoing concern during HCV therapy. This paper provides a review of the neuropsychiatric adverse effects of DAAs and drug-drug interactions (DDIs) between DAAs and psychiatric medications.MethodsWe conducted a Pubmed search using relevant search terms and hand searched reference lists of related review articles. In addition, we searched abstracts for major hepatology conferences and contacted respective pharmaceutical companies for additional studies.ResultsLimited data is available on the neuropsychiatric adverse effects of DAAs; however, data from major clinical trials suggest that DAAs have minimal neuropsychiatric risk. DAAs can potentially interact with a variety of psychotropic agents via cytochrome P450 and p-glycoprotein interactions. Triazolam, oral midazolam, St. John’s Wort, carbamazepine and pimozide, are contraindicated with DAAs. DDIs between DAAs and antidepressants, anxiolytics, hypnotics, mood stabilizers, antipsychotics and treatments for opioid dependence are summarized.ConclusionsAlthough DAAs do not add significant neuropsychiatric risk, the potential for DDIs is high. Consideration of DDIs is paramount to improving medication adherence and mitigating adverse effects during HCV therapy.