Colazal

Treatment of Ulcerative Colitis

Colazal is primarily used to manage active symptoms of ulcerative colitis, which is a chronic inflammatory bowel disease that causes swelling and sores in the lining of the large intestine (colon) and rectum. It is specifically indicated for patients experiencing mild to moderate flare-ups of the condition.

The medication is intended to help reduce common symptoms associated with intestinal inflammation, such as:

• Diarrhea
• Stomach pain
• Rectal bleeding

Colazal is approved for use in both adults and pediatric patients who are at least 5 years old. It is generally used as a short-term treatment to bring active symptoms under control, with typical treatment courses lasting between 8 and 12 weeks.

Mechanism of Action

Colazal contains balsalazide, which is known as a prodrug. This means the medication is inactive when it is first swallowed and only becomes active once it reaches a specific part of the digestive tract. Most of the drug passes through the stomach and small intestine without being absorbed into the bloodstream.

Release in the Colon

When the medication reaches the colon (large intestine), naturally occurring bacteria break the chemical bond of the balsalazide molecule. This process releases the active ingredient, mesalamine, directly onto the lining of the colon. Because the medicine is released at the site of the disease, it provides targeted treatment where it is needed most.

Reducing Inflammation

Mesalamine, also called 5-aminosalicylic acid (5-ASA), works locally on the colon wall to decrease inflammation. While the exact mechanism is not fully understood, it is believed to work by:

• Inhibiting the production of prostaglandins and leukotrienes, which are chemicals in the body that cause swelling and irritation.
• Acting as an antioxidant to reduce tissue damage caused by inflammation.
• Blocking certain enzymes that contribute to the inflammatory response.

By reducing this inflammation, the medication helps to manage the symptoms of ulcerative colitis and allows the lining of the colon to heal.

Common Side Effects

Many people using Colazal experience mild side effects. The most frequently reported symptoms include:

• Headache
• Stomach pain or cramping
• Nausea or vomiting
• Diarrhea
• Joint pain
• Feeling tired or weak
• Trouble sleeping
• Cold-like symptoms, such as a runny nose or sore throat

Serious Side Effects

While less common, some side effects can be serious and require immediate medical attention. Contact a healthcare provider right away if you experience:

• Acute Intolerance Syndrome: New or worsening symptoms that mimic a colitis flare, such as severe stomach pain, cramping, fever, or bloody diarrhea.
• Kidney Problems: Changes in how often you urinate, swelling in the feet or ankles, or blood in the urine.
• Liver Problems: Yellowing of the skin or the whites of the eyes (jaundice), dark-colored urine, or severe pain in the upper right stomach area.
• Severe Allergic Reactions: Skin rash, hives, itching, or swelling of the face, lips, or tongue.

In some cases, this medication may also cause a decrease in white blood cell counts or other blood-related issues. Always consult a healthcare professional if you notice any unusual or persistent symptoms while taking this medication.

Allergic Reactions

Colazal is contraindicated in individuals who have a known hypersensitivity to balsalazide disodium, its metabolites (such as mesalamine), or salicylates, including aspirin. Severe allergic reactions may occur in those with these sensitivities.

Kidney Health

There have been reports of kidney impairment, including renal failure and inflammation of the kidneys, in patients taking medications containing mesalamine. Healthcare providers typically evaluate kidney function before starting treatment and periodically during therapy, especially for those with a history of renal disease.

Liver Health

Caution is advised for patients with known liver disease. While the primary action of the drug occurs in the colon, systemic absorption can affect liver function in susceptible individuals.

Gastrointestinal Obstruction

Patients with a narrowing of the stomach outlet (pyloric stenosis) or other obstructions in the upper gastrointestinal tract may experience a delay in the medication reaching the colon, where it is intended to work.

Skin Sensitivity

Some patients, particularly those with pre-existing skin conditions like eczema or atopic dermatitis, may experience increased sensitivity to sunlight (photosensitivity) while taking this medication. Protective clothing and sunscreen are often recommended when outdoors.

Blood Disorders

Although rare, serious blood-related conditions such as low white blood cell counts or anemia have been reported with the use of similar medications. Monitoring of blood counts may be necessary if symptoms of infection or unusual bruising occur.

Pregnancy

There are no adequate and well-controlled studies of Colazal in pregnant women. Animal reproduction studies using doses significantly higher than the recommended human dose did not show evidence of harm to the fetus. However, because animal studies are not always predictive of human response, this medication should be used during pregnancy only if clearly needed.

If you are pregnant or planning to become pregnant, it is important to discuss the potential risks and benefits of using this medication with your healthcare provider.

Breastfeeding

It is not known whether Colazal or its metabolites pass into human breast milk. Because many drugs are excreted in human milk, healthcare providers generally advise caution when this medication is administered to a nursing person. You should consult with your doctor to determine the best course of action while breastfeeding.

Available Forms

Colazal is provided in the following dosage form:

• Oral Capsule: This medication is designed to be taken by mouth.

The capsules are intended to be swallowed whole. For patients who have difficulty swallowing capsules, the prescribing information provides specific instructions on how the capsules may be opened and the contents sprinkled on applesauce for immediate ingestion.

FDA Approval Status

Colazal, which contains the active ingredient balsalazide disodium, was first approved by the U.S. Food and Drug Administration (FDA) in 2000. It is a prescription-only medication used to manage symptoms of inflammatory bowel disease.

Approved Indications

The FDA has approved Colazal for the treatment of mildly to moderately active ulcerative colitis. The approved patient populations include:

• Adults
• Pediatric patients aged 5 years and older

The safety and effectiveness of this medication have not been established in pediatric patients younger than 5 years of age.

Safety and Regulatory Oversight

Colazal does not currently have any FDA boxed warnings, which are the most serious warnings assigned to medications with significant safety risks. Additionally, the FDA does not require a Risk Evaluation and Mitigation Strategy (REMS) for this drug. A REMS is a specialized safety program designed to ensure that the benefits of a high-risk medication outweigh its potential harms.

As with all FDA-approved medications, the regulatory status is subject to change based on ongoing post-marketing surveillance and the emergence of new clinical data.

Generic Availability

Colazal is available in a generic form known as balsalazide disodium. Generic medications typically cost less than brand-name versions while containing the same active ingredients and providing the same therapeutic effects.

Insurance and Medicare Coverage

Most health insurance plans and Medicare Part D provide coverage for balsalazide. The out-of-pocket cost for the patient depends on the specific plan's formulary, which determines the medication's tier and the required copayment or coinsurance.

Factors Influencing Price

Several factors can affect the final price of a prescription:

• The pharmacy used to fill the prescription.
• The total quantity of capsules prescribed.
• The use of manufacturer savings cards or patient assistance programs for those who qualify.

Because prices can fluctuate, it is helpful to compare costs at different pharmacies and speak with an insurance provider to understand specific coverage details.