If a joint return has been filed for a tax year, the spouses may file separate returns before the due date of the original return, determined without regard to any extensions. Husband and wife file a joint return on 3/15/13; they may change to married filing separate no later than 4/15/13.
Children â¥ 40 kg may receive adult doses. Below that weight, the oral dosage is ranitidine 2 mg/kg q 12 h and cimetidine 10 mg/kg q 12 h. For GERD, H 2 blockers are now mostly used for pain management. Gastritis heals with famotidine or ranitidine given bid for 8 to 12 wk.uration of action is proportional to dose and ranges from 6 to 20 h. Doses should often be reduced in elderly patients. For duodenal ulcers, once daily oral administration of cimetidine 800 mg, ranitidine 300 mg, famotidine 40 mg, or nizatidine 300 mg given at bedtime or after dinner for 6 to 8 wk is effective.
It is approved by the U.S. FDA for complicated UTIs and pyelonephritis in children. Ciprofloxacin dosage for UTI. Adults: 250 mg every 12 hours for 7 to 14 days. Complicated infections require 500 mg every 12 hours. Children 1-17 years of age: 10â20 mg/kg (up to 750 mg) every 12 hours for 10â21 days.