Rare: vasospasm. Side effects with Celexa 60 mg for hives are low and may include backache, sinusitis, dizziness, or drowsiness. A study involving haloperidol and zolpidem revealed no effect of haloperidol on the pharmacokinetics or pharmacodynamics of zolpidem. GENERIC CELEXA and GENERIC CELEXA XR have the same active ingredient. Because serious GI tract ulcerations and bleeding can occur without warning symptoms, physicians should monitor for signs or symptoms of GI bleeding. Co-administration of carbamazepine and other enzyme inducers (e.g., phenytoin, rifampin, phenobarbital) with RISPERDAL® would be expected to cause decreases in the plasma concentrations of the sum of generic celexa and 9-hydroxygeneric celexa combined, which could lead to decreased efficacy of RISPERDAL® treatment. Celebrex is indicated to reduce the number of adenomatous colorectal polyps in FAP, as an adjunct to usual care (e.g., endoscopic surveillance, surgery). While this interaction has not been formally studied, it is recommended that generic celexa levels be monitored when these drugs are concurrently administered. In patients with creatinine clearances of less than 30 mL/min, adjustment of the dosing regimen is recommended (see DOSAGE AND ADMINISTRATION). Elimination of generic celexa is principally by liver metabolism (conjugation) and subsequent renal excretion of metabolites. Helicobacter pylori: Susceptibility testing of H. A randomized, placebo-controlled, crossover interaction study in eight healthy female subjects between five consecutive daily doses of rifampin (600 mg) and a single dose of generic celexa (20 mg) given 17 hours after the last dose of rifampin showed significant reductions of the AUC (–73%), Cmax (–58%), and T1/2 (–36%) of generic celexa together with significant reductions in the pharmacodynamic effects of generic celexa. symptoms of depression (sleep problems, weakness, mood changes). zyrtec imitrex nexium soma ultram