5 Things to Know About Opioid-Induced Constipation

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  • There are four drugs in the H2 blocker class—cimetidine (Tagamet), famotidine (Pepcid), nizatidine (Axid), and ranitidine (Zantac). Each works about as well as the other.
  • Like other functions, stomach acid production has a circadian rhythm. It’s highest at night between 10:00 pm and 2:00 am. When ranitidine is used for ulcers, the dose is once a day at bedtime or twice daily.
  • Ranitidine HCl (Zantac) is a histamine-2 receptor blocker, or H2 blocker for gastroesophageal reflux disease and other conditions.
  • Enema uses most commonly focus on constipation relief, but other reasons for enema include cleansing the colon before a medical examination.
  • An enema procedure can provide relief for constipation and may be performed at home or by a doctor. Here's what to expect.
  • Get an overview of the pancreas, including pancreas function, location and possible pancreas symptoms and conditions.
  • Get an overview of the gallbladder, including gallbladder function, location and possible gallbladder symptoms and conditions.
  • Learn why it's called 'slow stomach,' how gastroparesis from diabetes occurs, and medications to avoid when you have gastroparesis.
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