epocrates logo
epocrates logo
epocrates logo
  • 0

Interaction Check

epocrates logo

Sign in to access our clinical decision support tools

Sign in Create Account

Selected Drugs Clear All

  • remove diphenoxylate/ atropine
    generic
  • remove morphine sulfate
    generic
  • remove polyethylene glycol 3350
    generic

multicheck MultiCheck Results - 3 Interactions

Smiley face Smiley face

Monitor/Modify Tx

Smiley face Smiley face diphenoxylate/atropine (generic) + morphine sulfate (generic)

Monitor/Modify Tx


diphenoxylate + morphine

monitor respiratory rate, decr. dose of one or both drugs, use lowest effective doses and shortest duration of concomitant tx: combo may incr. risk of profound CNS and respiratory depression, psychomotor impairment, severe constipation/paralytic ileus, other anticholinergic adverse effects (additive effects)

Caution Advised


atropine + morphine

caution advised: combo may incr. risk of severe constipation, paralytic ileus, urinary retention (additive effects)

Caution Advised

Smiley face Smiley face morphine sulfate (generic) + polyethylene glycol 3350 (generic)

Caution Advised


morphine + polyethylene glycol

caution advised, especially if polyethylene glycol bowel prep use: combo may incr. risk of seizures (additive effects)

Additional Considerations

Smiley face Smiley face morphine in morphine sulfate

consider prescribing an opioid overdose reversal agent, especially with concomitant CNS depressant use

add MAO inhibitor to Interaction Check if recent (14 days) use

avoid combo with beverages or products containing ethanol and some morphine extended-release (ER) capsules; combo may incr. morphine release rate, levels, risk of adverse effects, including life-threatening overdose, decr. duration of efficacy

Smiley face Smiley face polyethylene glycol in polyethylene glycol 3350

separate administration from other oral drugs by at least 1h; polyethylene glycol when used for bowel prep may decr. absorption of concomitant oral drugs

Help
FDA Reporting Form
 
Download Epocrates from the App Store Download Epocrates from the Play Store
About Us Features Business Solutions Help & Feedback Cookie Preferences
© 2026 epocrates, Inc.    Terms of Use Privacy Policy Editorial Policy Do Not Sell or Share My Information