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Delzicol Side Effects Center
Pharmacy Editor: Melissa Conrad Stöppler, MD
Delzicol (mesalamine) is used to treat mildly to moderately active ulcerative colitis (UC) and to maintain remission of UC. The most common side effects are abdominal pain, belching, headache, back pain, diarrhea, rash, upset stomach, nasal inflammation, flu syndrome, intestinal gas, vomiting, fever, joint pain, constipation, and gastrointestinal bleeding.
Delzicol is available as a delayed-release capsule in 400 mg strength. For the treatment of mildly to moderately active ulcerative colitis, patients should take 800mg of Delzicol, three times daily. For the maintenance of remission of ulcerative colitis, patients should take 1.6g (four capsules) daily, in divided doses. Delzicol should be swallowed whole without cutting, breaking, or chewing, and should be taken 1-2 hours after a meal. Nephrotoxic agents, or drugs that can be harmful to the kidneys such as non-steroidal anti-inflammatory drugs (NSAIDs), may interact with Delzicol. Doctors should carefully evaluate the risks and benefits of Delzicol in patients with known kidney dysfunction or patients with a history of kidney disease. Delzicol has not been studied in pregnant women. Doctors should carefully evaluate the risks and benefits when giving Delzicol to a breastfeeding mother.
Our Delzicol (mesalamine) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Delzicol FDA Prescribing Information: Side Effects
The most serious adverse reactions seen in DELZICOL clinical trials or with other products that contain or are metabolized to mesalamine are:
- Renal impairment, including renal failure [see WARNINGS AND PRECAUTIONS]
- Acute intolerance syndrome [see WARNINGS AND PRECAUTIONS]
- Hypersensitivity reactions [see WARNINGS AND PRECAUTIONS]
- Hepatic failure [see WARNINGS AND PRECAUTIONS]
The data presented in Section 6.1 are from clinical trials conducted with mesalamine delayed-release tablets. DELZICOL is bioequivalent to these mesalamine delayed-release tablets.
Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
In total, mesalamine delayed-release 400 mg tablets have been evaluated in 2690 patients with ulcerative colitis in controlled and open-label trials. Adverse events presented in the following sections may occur regardless of length of therapy and similar events have been reported in short-and long-term studies and in the postmarketing setting.
Clinical studies supporting mesalamine delayed-release tablets use for the treatment of mildly to moderately active ulcerative colitis included two 6-week, placebo-controlled, randomized, double-blind studies in adults with mildly to moderately active ulcerative colitis (Studies 1 and 2), and one 6-week, randomized, double-blind, study of 2 dose levels in children with mildly to moderately active ulcerative colitis. Clinical studies supporting the use of mesalamine delayed-release tablets in the maintenance of remission of ulcerative colitis included a 6-month, randomized, double-blind, placebo-controlled, multicenter study and four active-controlled maintenance trials comparing mesalamine delayed-release with sulfasalazine. Mesalamine delayed-release tablets have been evaluated in 427 adults and 82 children with ulcerative colitis in these controlled studies.
Treatment of Mildly to Moderately Active Ulcerative Colitis in Adults
In two 6-week placebo-controlled clinical studies (Studies 1 and 2) involving 245 patients, 155 of whom were randomized to mesalamine delayed-release tablets [see Clinical Studies], 3.2% of the mesalamine delayed-release tablets-treated patients discontinued therapy because of adverse reactions as compared to 2.2% of the placebo-treated patients. The average age of patients in Study 1 was 42 years and 48% of patients were male. The average age of patients in Study 2 was 42 years and 59% of patients were male. Adverse reactions leading to withdrawal from mesalamine delayed-release tablets included (each in one patient): diarrhea and colitis flare; dizziness, nausea, joint pain, and headache; rash, lethargy and constipation; dry mouth, malaise, lower back discomfort, mild disorientation, mild indigestion and cramping; headache, nausea, aching, vomiting, muscle cramps, a stuffy head, plugged ears, and fever.
Adverse reactions in patients treated with mesalamine delayed-release tablets occurring at a frequency of at least 2% and at a rate greater than placebo in 6-week, double-blind, placebo-controlled trials (Studies 1 and 2) are listed in Table 1 below.
Table 1 : Adverse Reactions Reported in Two Six-Week
Placebo-Controlled Trials (Studies 1 and 2) Experienced by at Least 2% of
patients in the mesalamine delayed-release tablets Group and at a Rate Greater
|Adverse Reaction||% of Patients with Adverse Reactions|
|mesalamine delayed-release tablets
(n = 152)
(n = 87)
Treatment of Mildly to Moderately Active Ulcerative Colitis in Pediatric Patients 5 to 17 Years Old
A randomized, double-blind, 6-week study of 2 dose levels of mesalamine delayed-release 400 mg tablets (Study 3) was conducted in 82 pediatric patients 5 to 17 years of age with mildly to moderately active ulcerative colitis. All patients were divided by body weight category (17 to less than 33 kg, 33 to less than 54 kg, and 54 to 90 kg) and randomly assigned to receive a low dose (1.2, 2.0, and 2.4 g/day for the respective body weight category) or a high dose (2.0, 3.6, and 4.8 g/day).
Duration of exposure to mesalamine among the 82 patients in the study ranged from 12 to 50 days (mean of 40 days in each dose group). The majority (88%) of patients in each group were treated for more than 5 weeks. Table 2 provides a summary of the specific reported adverse reactions (ARs).
Table 2: Adverse Reactions Reported in One Six-Week
Trial (Study 3) Experienced by at Least 5% of Patients in the Low Dose Group or
High Dose Group
|Adverse Reaction||% of Patients with Adverse Reactions|
|Low Dose = mesalamine 400mg delayed-release tablet 1.2 -
2.4 g/day; High Dose = mesalamine 400mg delayed-release tablet 2.0 - 4.8 g/day.
Dosage was dependent on body weight.
Adverse Reactions reported at the 1-week telephone follow-up visit are included
Twelve percent of the patients in the low dose group and 5% of the patients in the high dose group had serious adverse reactions (ARs). Ulcerative colitis was reported as a serious AR in one subject in each group. Other serious ARs consisted of sinusitis, abdominal pain, decreased body mass index, adenovirus infection, bloody diarrhea, sclerosing cholangitis, and pancreatitis in one subject each in the low dose group and anemia and syncope in one subject each in the high dose group.
Seven patients were withdrawn from the study because of ARs: 5 (12%) in the low dose group (ulcerative colitis, adenovirus infection, sclerosing cholangitis, pancreatitis) and 2 (5%) in the high dose group (increased amylase and increased lipase, upper abdominal pain).
In general, the nature and severity of reactions in the pediatric population was similar to those reported in adult populations of patients with ulcerative colitis.
Maintenance of Remission of Ulcerative Colitis in Adults
In a 6-month placebo-controlled maintenance trial involving 264 patients (Study 4) 177 of whom were randomized to mesalamine delayed-release tablets, six (3.4%) of the patients using mesalamine delayed-release tablets discontinued therapy because of adverse reactions, as compared to four (4.6%) of patients using placebo [see Clinical Studies]. The average age of patients in Study 4 was 42 years and 55% of patients were male. Adverse reactions leading to study withdrawal in patients using mesalamine delayed-release tablets included (each in one patient): anxiety; headache; pruritus; decreased libido; rheumatoid arthritis; and stomatitis and asthenia.
In addition to reactions listed in Table 1, the following adverse reactions occurred in patients using mesalamine delayed-release tablets at a frequency of 2% or greater in Study 4: abdominal enlargement, gastroenteritis, gastrointestinal hemorrhage, infection, joint disorder, migraine, nervousness, paresthesia, rectal disorder, rectal hemorrhage, stool abnormalities, tenesmus, urinary frequency, vasodilation, and vision abnormalities.
In 3342 patients in uncontrolled clinical studies, the following adverse reactions occurred at a frequency of 5% or greater and appeared to increase in frequency with increasing dose: asthenia, fever, flu syndrome, pain, abdominal pain, back pain, flatulence, gastrointestinal bleeding, arthralgia, and rhinitis.
In addition to the adverse reactions reported above in clinical trials involving mesalamine delayed-release tablets, the adverse reactions listed below have been identified during post-approval use of mesalamine delayed-release tablets and other mesalamine-containing products. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Body as a Whole: Neck pain, facial edema, edema, lupus-like syndrome, drug fever.
Special Senses: Eye pain, taste perversion, blurred vision, tinnitus.
Read the entire FDA prescribing information for Delzicol (Mesalamine Delayed-Release Capsules) »
Additional Delzicol Information
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