Mesalamine 1.2gm Tablets
Overview
What is this medicine?
How to Use This Medicine
To ensure you get the most benefit from your medication, follow your doctor's instructions carefully. Read all the information provided with your prescription and follow the instructions closely. Some medications should be taken with food, while others should be taken on an empty stomach. If you're unsure, consult with your pharmacist.
When taking your medication, make sure to:
Take it with a full glass of water
Swallow the medication whole, without chewing, breaking, or crushing it
If you have difficulty swallowing, discuss this with your doctor
Continue taking your medication as directed by your doctor or healthcare provider, even if you start to feel better.
Storing and Disposing of Your Medication
To maintain the effectiveness and safety of your medication:
Store it at room temperature in a dry place, avoiding the bathroom
If your medication comes with a desiccant (a moisture-protecting packet) in the container, leave it in the bottle
Some brands may allow storage without the desiccant for a short period; if you're unsure, consult with your doctor or pharmacist
* Keep all medications in a safe place, out of reach of children and pets
What to Do If You Miss a Dose
If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take two doses at the same time or take extra doses.
Lifestyle & Tips
- Take tablets whole; do not crush, break, or chew them.
- Take with food as directed by your doctor.
- Stay well-hydrated, especially during hot weather or exercise, to help prevent kidney problems.
- Report any new or worsening symptoms to your doctor immediately.
- Adhere to your prescribed dosing schedule, even if you feel better, to maintain remission.
Available Forms & Alternatives
Available Strengths:
- Mesalamine Rectal Susp 28x60ml
- Mesalamine Rectal Susp 7x60ml
- Mesalamine 4gm Kit( 7 X 60ml)
- Mesalamine 4gm Kit (4 Kits)
- Mesalamine 800mg DR Tablets
- Mesalamine 400mg DR Capsules
- Mesalamine 1000mg Suppositories
- Mesalamine 1.2gm Tablets
- Mesalamine 0.375gm Capsules
- Mesalamine 0.375gm ER Capsules
- Mesalamine 500mg ER Capsules
- Mesalamine 0.375gm Capsules
- Mesalamine Rectal Susp 7x60ml
- Mesalamine Rectal Susp 28x60ml
- Mesalamine 800mg DR Tablets
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
Side Effects
Although rare, this medication can cause severe and potentially life-threatening side effects. If you experience any of the following symptoms, contact your doctor immediately or seek emergency medical attention:
Signs of an allergic reaction: rash, hives, itching, red, swollen, blistered, or peeling skin (with or without fever), wheezing, tightness in the chest or throat, difficulty breathing, swallowing, or talking, unusual hoarseness, or swelling of the mouth, face, lips, tongue, or throat.
Kidney problems: inability to urinate, changes in urine output, blood in the urine, or significant weight gain. Back pain, abdominal pain, or blood in the urine may indicate a kidney stone.
Chest pain or pressure, rapid heartbeat, or irregular heartbeat.
Fever, chills, sore throat, unexplained bruising or bleeding, or feeling extremely tired or weak.
Symptoms resembling ulcerative colitis: new or worsening stomach pain or cramps, bloody stools, fever, headache, itching, rash, red or pink eyes, or general feeling of illness.
Liver problems (rare, but potentially life-threatening): dark urine, fatigue, decreased appetite, nausea, stomach pain, pale stools, vomiting, or yellow skin and eyes.
Heart problems (rare, but potentially life-threatening): shortness of breath, significant weight gain, or swelling in the arms or legs.
Severe skin reactions (including Stevens-Johnson syndrome, toxic epidermal necrolysis, and other serious reactions): red, swollen, blistered, or peeling skin; red or irritated eyes; sores in the mouth, throat, nose, eyes, genitals, or skin; fever; chills; body aches; shortness of breath; or swollen glands.
Other Possible Side Effects
Like all medications, this drug can cause side effects. While many people experience no side effects or only mild ones, others may have more bothersome symptoms. If you experience any of the following side effects, contact your doctor or seek medical attention:
Gastrointestinal symptoms: constipation, diarrhea, stomach pain, nausea, vomiting, or heartburn.
Gas or burping.
Nose or throat irritation.
Dizziness or headache.
Back pain.
Cough.
This list is not exhaustive. If you have questions or concerns about side effects, consult your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Severe abdominal pain, cramping, or bloody diarrhea (signs of acute intolerance syndrome)
- Chest pain, shortness of breath, or palpitations (signs of myocarditis/pericarditis)
- New or worsening kidney problems (e.g., decreased urination, swelling in legs/feet)
- Signs of liver problems (e.g., yellowing of skin/eyes, dark urine, severe nausea/vomiting)
- Unexplained bleeding, bruising, unusual tiredness, or signs of infection (e.g., fever, sore throat) (signs of blood disorders)
- Skin rash, fever, or swollen lymph nodes (signs of hypersensitivity reactions)
Before Using This Medicine
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the symptoms you experienced.
Existing health conditions, including:
+ Kidney disease or liver disease
+ Stomach or bowel ulcers
+ Narrowing of the stomach valve or other types of stomach blockages
+ Blockages in the urinary tract (consult with your healthcare provider)
Other medications you are taking, including:
+ Prescription and over-the-counter (OTC) drugs
+ Natural products
+ Vitamins
Other health problems you may have
This is not an exhaustive list of potential interactions. To ensure your safety, it is crucial to discuss all your medications and health conditions with your doctor and pharmacist. Never start, stop, or change the dosage of any medication without first consulting your doctor to confirm it is safe to do so.
Precautions & Cautions
This medication may interfere with certain laboratory tests, so it is crucial to notify all your healthcare providers and laboratory personnel that you are taking this drug.
To stay hydrated, drink plenty of non-caffeinated fluids, unless your doctor advises you to limit your fluid intake.
While taking this medication, you may notice that your urine turns reddish-brown when it comes into contact with surfaces or water that have been treated with bleach, such as in the toilet. However, if you observe that your urine is reddish-brown before it comes into contact with any surfaces or water, please contact your doctor.
You may be more susceptible to sunburn while taking this medication. To protect yourself, avoid exposure to the sun, sunlamps, and tanning beds. Use sunscreen and wear protective clothing and eyewear to minimize your risk of sunburn.
If you are 65 years or older, use this medication with caution, as you may be more prone to experiencing side effects.
Not all formulations of this medication are suitable for children. Before giving this medication to a child, consult with your doctor to determine the appropriate dosage and potential risks.
Do not administer this medication to children and teenagers who have or are recovering from flu symptoms, chickenpox, or other viral infections, as this may increase the risk of Reye's syndrome, a condition that can cause severe brain and liver damage.
If you notice that parts of the medication are visible in your stool, and this occurs frequently, please discuss this with your doctor.
If you are pregnant, plan to become pregnant, or are breastfeeding, inform your doctor, as they will need to discuss the potential benefits and risks of this medication to you and your baby.
Overdose Information
Overdose Symptoms:
- Nausea
- Vomiting
- Abdominal pain
- Headache
- Drowsiness
- Vertigo
- Tinnitus
- Sweating
- Hyperventilation
What to Do:
Call 1-800-222-1222 (Poison Control Center) immediately or seek emergency medical attention. Treatment is generally supportive and symptomatic.
Drug Interactions
Major Interactions
- Nephrotoxic agents (e.g., NSAIDs, tacrolimus, cyclosporine): Increased risk of renal adverse reactions.
- Azathioprine, 6-mercaptopurine (6-MP): Increased risk of myelosuppression due to inhibition of thiopurine methyltransferase (TPMT) by mesalamine.
Moderate Interactions
- Lactulose: May interfere with mesalamine release from pH-dependent formulations.
- Antacids: May interfere with mesalamine release from pH-dependent formulations.
Monitoring
Baseline Monitoring
Rationale: To assess baseline kidney function, as mesalamine can cause renal impairment.
Timing: Prior to initiation of therapy.
Rationale: To assess baseline liver function, as mesalamine can cause hepatotoxicity.
Timing: Prior to initiation of therapy.
Rationale: To assess baseline hematologic status, as mesalamine can cause blood dyscrasias.
Timing: Prior to initiation of therapy.
Routine Monitoring
Frequency: Periodically during treatment, especially in patients with pre-existing renal disease or those receiving concomitant nephrotoxic drugs. Annually for others.
Target: Within normal limits or stable from baseline.
Action Threshold: Significant increase in creatinine, signs of renal impairment.
Frequency: Periodically during treatment, especially if symptoms of liver injury develop.
Target: Within normal limits or stable from baseline.
Action Threshold: Significant elevation (e.g., >3x ULN), signs of hepatotoxicity.
Frequency: Periodically during treatment, especially if unexplained bleeding, bruising, purpura, sore throat, fever, or malaise occur.
Target: Within normal limits or stable from baseline.
Action Threshold: Significant decrease in cell counts (e.g., leukopenia, thrombocytopenia, anemia).
Frequency: Regularly (e.g., at follow-up visits)
Target: Reduction or resolution of symptoms (e.g., diarrhea, rectal bleeding, abdominal pain).
Action Threshold: Worsening symptoms, lack of response to therapy.
Symptom Monitoring
- Worsening or new abdominal pain
- Bloody diarrhea
- Fever
- Rash
- Chest pain or shortness of breath (myocarditis/pericarditis)
- Unexplained bleeding or bruising
- Sore throat or fever (blood dyscrasias)
- Yellowing of skin or eyes, dark urine (liver injury)
- Decreased urine output, swelling (renal impairment)
Special Patient Groups
Pregnancy
Mesalamine is generally considered low risk during pregnancy. While animal studies have shown no evidence of harm, human data are limited but reassuring. Use only if clearly needed and potential benefits outweigh risks. Consult with a healthcare provider.
Trimester-Specific Risks:
Lactation
Mesalamine and its metabolite are excreted in breast milk in small amounts. Generally considered compatible with breastfeeding (L2). Monitor breastfed infants for diarrhea.
Pediatric Use
Safety and effectiveness of mesalamine 1.2g tablets have not been established in pediatric patients. Other mesalamine formulations are approved for pediatric use in ulcerative colitis.
Geriatric Use
Use with caution in elderly patients, as they are more likely to have decreased renal function. Monitor renal function closely. No specific dose adjustment is typically required based solely on age, but consider overall health and comorbidities.
Clinical Information
Clinical Pearls
- Mesalamine is a cornerstone therapy for mild to moderate ulcerative colitis, acting locally in the colon.
- Different mesalamine formulations (e.g., Lialda, Apriso, Asacol HD, Pentasa) have distinct release mechanisms and target different parts of the GI tract. Ensure the correct formulation is prescribed for the patient's disease location.
- Patients should be advised to swallow tablets whole and not to chew, crush, or break them, as this can alter the drug's release properties.
- Monitor renal function, liver function, and CBC periodically, especially at baseline and during long-term therapy.
- Be aware of the rare but serious adverse events like acute intolerance syndrome (mimicking UC flare), myocarditis/pericarditis, and hypersensitivity reactions.
- Concomitant use with NSAIDs or other nephrotoxic drugs increases the risk of renal impairment.
Alternative Therapies
- Sulfasalazine (another aminosalicylate)
- Corticosteroids (e.g., prednisone, budesonide) for induction of remission
- Immunomodulators (e.g., azathioprine, 6-mercaptopurine, methotrexate) for maintenance
- Biologic agents (e.g., infliximab, adalimumab, vedolizumab, ustekinumab) for moderate to severe disease
- JAK inhibitors (e.g., tofacitinib) for moderate to severe disease