Colestid (Colestipol) and Lialda (Mesalamine) Interaction in an 89-Year-Old Patient
Colestid (colestipol) should not be taken at the same time as Lialda (mesalamine) - they should be administered at least 4 hours apart to avoid potential interference with Lialda absorption. 1
Medication Mechanisms and Concerns
Colestid (Colestipol)
- Mechanism: Colestipol is a bile acid sequestrant (BAS) that binds bile acids in the intestine, preventing reabsorption 1
- Purpose: Used to lower LDL cholesterol in primary hyperlipidemia 1
- Key concern: Colestipol can bind to and decrease absorption of many medications 1
Lialda (Mesalamine)
- Mechanism: Delayed-release 5-aminosalicylate formulation that delivers anti-inflammatory medication to the colon 1
- Purpose: Treatment of mild-to-moderate ulcerative colitis 1
Administration Recommendations
Timing Separation
- Administer Lialda at least 4 hours before Colestid 1
- This timing separation is critical to ensure proper absorption of Lialda 1
Dosing Schedule Example
- Morning: Take Lialda with breakfast
- Evening: Take Colestid with dinner (at least 4 hours after Lialda)
Colestipol Administration
- Typical dosage: 2-16g/day orally, given once or in divided doses 1
- Can be taken with meals and liquid to improve tolerability 1
Mesalamine Administration
- Lialda (1200mg tablets) can be taken once daily 1
- Once-daily dosing has similar pharmacokinetics to multiple daily dosing regimens 2
Monitoring and Precautions
Watch for:
- Constipation: Most common side effect of Colestid 1, 3
- GI symptoms: Dyspepsia, nausea, bloating 1, 3
- Medication efficacy: Ensure both medications are achieving desired effects 1
Special Considerations for Elderly Patients
- Constipation risk: Higher in elderly patients; ensure adequate hydration and fiber intake 3
- Polypharmacy: Review all medications for additional potential interactions 1
- Renal function: Consider age-related decline in renal function when dosing mesalamine 1
Common Pitfalls to Avoid
- Same-time administration: Never give Colestid and Lialda simultaneously 1
- Inadequate separation: Failure to maintain 4-hour separation may reduce Lialda efficacy 1
- Dehydration: Colestid can cause constipation, which may be worsened by inadequate fluid intake 1
- Medication non-adherence: Complex timing requirements may reduce compliance; provide clear written instructions 4
Alternative Considerations
If medication timing becomes too complex or adherence is challenging:
- Consider colesevelam (Welchol) instead of colestipol, as it has fewer drug interactions 3, 4
- Discuss with the prescribing physician whether alternative lipid-lowering strategies might be appropriate for this 89-year-old patient 1, 5
By carefully timing the administration of these medications and monitoring for side effects, an 89-year-old patient can safely take both Colestid and Lialda.