| Increase | | Adrenocorticotropic hormone | | Aminosalicylic acid | | Some antibiotics (eg, nitrofurantoin) | | Some antineoplastics (eg, asparaginase) | | Aspirin | | Atovaquone | | Calcium salts | | Chloride salts | | Chlorpromazine | | Chlorthalidone | | Cholinergics (eg, bethanechol) | | Cimetidine | | Codeine | | Cyproheptadine | | Didanosine | | Estrogens | | Ethacrynic acid | | Ethanol | | | Increase (cont.) | | Fluorides | | Iodine-containing contrast media | | Lamivudine | | Meperidine | | Methylcholine | | Methyldopa | | Metoclopramide | | Metronidazole | | Pegaspargase | | Prochlorperazine | | Sulfonamides | | Sulindac | | Sunitinib | | Sorafenib | | Thiazide diuretics | | Triprolidine/pseudoephedrine | | Valproic acid | | | Decrease | | Citrates | | Intravenous dextrose | | Oxalates | | Saquinavir | |
