Asacol Side Effects

Generic Name: mesalamine

Please note - some side effects for Asacol may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

Side Effects of Asacol - for the Consumer

Asacol Delayed-Release Tablets

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Asacol Delayed-Release Tablets:

Diarrhea; headache; mild stomach discomfort or pain; nausea; runny or stuffy nose.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in the urine; bloody diarrhea; bloody or coffee ground-like vomit; change in the amount of urine; dark urine; fever, chills, or persistent sore throat; severe or persistent headache; severe or sudden stomach pain or cramping; shortness of breath; unusual bruising or bleeding; yellowing of the skin or eyes.

Asacol HD Delayed-Release Tablets

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Asacol HD Delayed-Release Tablets:

Diarrhea; headache; mild stomach discomfort or pain; nausea; runny or stuffy nose.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in the urine; bloody diarrhea; bloody or coffee ground-like vomit; change in the amount of urine; dark urine; fever, chills, or persistent sore throat; severe or persistent headache; severe or sudden stomach pain or cramping; shortness of breath; unusual bruising or bleeding; yellowing of the skin or eyes.

Asacol Side Effects - for the Professional

Asacol

Asacol tablets have been evaluated in 3685 inflammatory bowel disease patients (most patients with ulcerative colitis) in controlled and open-label studies. Adverse events seen in clinical trials with Asacol tablets have generally been mild and reversible. 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 post-marketing setting.

In two short-term (6 weeks) placebo-controlled clinical studies involving 245 patients, 155 of whom were randomized to Asacol tablets, five (3.2%) of the Asacol patients discontinued Asacol therapy because of adverse events as compared to two (2.2%) of the placebo patients. Adverse reactions leading to withdrawal from Asacol 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 events occurring in Asacol-treated patients at a frequency of 2% or greater in the two short-term, double-blind, placebo-controlled trials mentioned above are listed in Table 1 below. Overall, the incidence of adverse events seen with Asacol tablets was similar to placebo.

Of these adverse events, only rash showed a consistently higher frequency with increasing Asacol dose in these studies.

In a 6-month placebo-controlled maintenance trial involving 264 patients, 177 of whom were randomized to Asacol tablets, six (3.4%) of the Asacol patients discontinued Asacol therapy because of adverse events, as compared to four (4.6%) of the placebo patients. Adverse reactions leading to withdrawal from Asacol tablets included (each in one patient): anxiety; headache; pruritus; decreased libido; rheumatoid arthritis; and stomatitis and asthenia.

In the 6-month placebo-controlled maintenance trial, the incidence of adverse events seen with Asacol tablets was similar to that seen with placebo. In addition to events listed in Table 1, the following adverse events occurred in Asacol-treated patients at a frequency of 2% or greater in this study: abdominal enlargement, anxiety, bronchitis, ear disorder, ear pain, gastroenteritis, gastrointestinal hemorrhage, infection, joint disorder, migraine, nervousness, paresthesia, rectal disorder, rectal hemorrhage, sinusitis, stool abnormalities, tenesmus, urinary frequency, vasodilation, and vision abnormalities.

In 3342 patients in uncontrolled clinical studies, the following adverse events 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 events listed above, the following events have been reported in clinical studies, literature reports, and postmarketing use of products which contain (or have been metabolized to) mesalamine. Because many of these events were reported voluntarily from a population of unknown size, estimates of frequency cannot be made. These events have been chosen for inclusion due to their seriousness or potential causal connection to mesalamine:

Body as a Whole: Neck pain, facial edema, edema, lupus-like syndrome.

Cardiovascular: Pericarditis (rare), myocarditis (rare).

Gastrointestinal: Anorexia, pancreatitis, gastritis, increased appetite, cholecystitis, dry mouth, oral ulcers, perforated peptic ulcer (rare), bloody diarrhea. There have been rare reports of hepatotoxicity including, jaundice, cholestatic jaundice, hepatitis, and possible hepatocellular damage including liver necrosis and liver failure. Some of these cases were fatal. Asymptomatic elevations of liver enzymes which usually resolve during continued use or with discontinuation of the drug have also been reported. One case of Kawasaki-like syndrome which included changes in liver enzymes was also reported.

Hematologic: Agranulocytosis (rare), aplastic anemia (rare), thrombocytopenia, eosinophilia, leukopenia, anemia, lymphadenopathy.

Musculoskeletal: Gout.

Nervous: Depression, somnolence, emotional lability, hyperesthesia, vertigo, confusion, tremor, peripheral neuropathy (rare), transverse myelitis (rare), Guillain-Barré syndrome (rare).

Respiratory/Pulmonary: Eosinophilic pneumonia, interstitial pneumonitis, asthma exacerbation, pleuritis.

Skin: Alopecia, psoriasis (rare), pyoderma gangrenosum (rare), dry skin, erythema nodosum, urticaria.

Special Senses: Eye pain, taste perversion, blurred vision, tinnitus.

Urogenital: Interstitial nephritis, minimal change nephropathy, dysuria, urinary urgency, hematuria, epididymitis, menorrhagia.

Laboratory Abnormalities: Elevated AST (SGOT) or ALT (SGPT), elevated alkaline phosphatase, elevated GGT, elevated LDH, elevated bilirubin, elevated serum creatinine and BUN.

Side Effects by Body System

Gastrointestinal

Gastrointestinal side effects have frequently included abdominal pain (up to 18%), eructation (up to 16%), nausea (up to 13%), diarrhea (up to 8%), dyspepsia (up to 6%), vomiting (up to 5%), constipation (up to 5%), upper abdominal pain (5%), gastrointestinal bleeding (up to 5% or greater), flatulence (up to 5% or greater), colitis exacerbation (up to 3%), lower abdominal pain (less than 3%), rectal hemorrhage (less than 3%), gastroenteritis (2% or greater), stool abnormalities (color or texture change; up to 2% or greater), tenesmus (up to 2% or greater), rectal disorder (2% or greater), and abdominal enlargement (up to 2% or greater). Infrequently, pancreatitis, rectal polyp, anorexia, duodenal ulcer, esophageal ulcer, dysphagia, fecal incontinence, oral moniliasis, thirst, bloody diarrhea, recurrence of ulcerative colitis, gastritis, increased appetite, cholecystitis, dry mouth, stomatitis, taste perversion, and perforated peptic ulcer (rare) have been reported. Worsening of colitis or symptoms of inflammatory bowel disease, including melena and hematochezia, have also been reported after commencing mesalamine rectal suspension enema.

Nervous system

Nervous system side effects have included headache (up to 35%), dizziness (up to 8%), lightheadedness (8%), faintness (8%), tinnitus (less than 3%), vertigo (less than 3%), migraine (2% or greater), paresthesia (up to 2% or greater), insomnia (up to 2%). Infrequently, somnolence, tremor, hyperesthesia, peripheral neuropathy (rare), Guillain-Barre syndrome (rare), transverse myelitis (rare), and benign intracranial hypertension (at least 1 case) have been reported. Systemic lupus erythematosus has been reported during postmarking experience.

A 23-year-old female with ulcerative colitis who had been taking 400 mg mesalamine tablets three times a day developed benign intracranial hypertension. The examination disclosed benign intracranial hypertension that resolved when mesalamine was discontinued and recurred when the drug was restarted.

Musculoskeletal

Musculoskeletal side effects have included muscle aches (21%), arthralgia (up to 5% or greater), hypertonia (5%), myalgia (up to 3%), joint disorder (2% or greater), arthritis (2%), gout, leg cramps, and rheumatoid arthritis.

Respiratory

A 72-year-old female with ulcerative colitis who had begun taking two 400 mg mesalamine tablets twice daily experienced pleural effusion and pulmonary infiltrates. Chest radiograph showed bilateral pleural effusions and an infiltrate in the lower lobe of the right lung. It was determined that the adverse events described appeared likely to be due to mesalamine therapy.

Respiratory side effects have included nasopharyngitis (up to 11%), rhinitis (up to 9%), influenza and influenza-like illness (up to 5% or greater), sinusitis (3%), dyspnea (less than 3%), bronchitis (2% or greater), increased cough (2%), eosinophilic pneumonia, interstitial pneumonitis, asthma exacerbation, and pleuritis. Pleural effusion and pulmonary infiltrates, generally accompanied by eosinophilia, have been reported rarely. More severe cases have included fibrosing alveolitis. Pneumonitis has been reported during postmarketing experience.

Cardiovascular

Cardiovascular side effects have included chest pain of unknown etiology (3%) and vasodilation (up to 2% or greater). Infrequently, tachycardia, hypertension, hypotension, palpitations, pericarditis, pericardial effusion, myocarditis (rare), T-wave abnormalities (rare), severe symptomatic sinus bradycardia (at least 1 case), and pleuropericarditis (at least 1 case) have been reported. Angioedema has been reported during postmarketing experience.

One 20-year-old patient died of cardiac arrhythmias attributed to myocarditis 13 days after starting mesalamine.

A 56-year-old male with hypertension and ulcerative proctitis experienced pleuropericarditis coincident with mesalamine therapy. Evaluation revealed acute pleuropericarditis manifested by ECG changes, pericardial effusion, and a small pleural effusion. All symptoms resolved when mesalamine was discontinued.

Other

Other side effects have included pain (in various parts of the body; up to 14%), asthenia (up to 7%), fever (up to 6%), chills (3%), peripheral edema (3%), fatigue (up to 3%), ear disorder (2% or greater), infection (2% or greater), malaise (2%), lymphadenopathy, facial edema, edema, lupus-like syndrome, ear pain, ear congestion, and drug fever (rare).

Dermatologic

Dermatologic side effects have included rash (up to 7%), sweating (up to 3%), pruritus (up to 3%), alopecia (less than 3%), and acne (up to 2%). Infrequently, lupus erythematosus-like reactions, prurigo, urticaria, dry skin, eczema, erythema nodosum, lichen planus, nail disorder, photosensitivity, folliculitis (rare), psoriasis (rare), and pyoderma gangrenosum (rare) have been reported.

Hematologic

Hematologic side effects have included decreased hematocrit and hemoglobin (less than 3%), thrombocytopenia, eosinophilia, leukopenia, neutropenia, pancytopenia, anemia, ecchymosis, thrombocythemia, agranulocytosis (rare), and aplastic anemia (rare). Granulocytopenia has been reported during postmarketing experience.

Hypersensitivity

A male patient with ulcerative colitis experienced pruriginous rash coincident with mesalamine therapy. He experienced the cutaneous hypersensitivity reaction 48 hours after initiating therapy with mesalamine 500 mg orally every 8 hours. After mesalamine was suspended and antihistamines were given, the patient recovered. Upon reintroduction of mesalamine, the symptoms appeared again 24 hours later.

Hypersensitivity side effects have included rash and pruritus (greater than 2%); arthralgias, myalgias, and fever (greater than 1%); and less commonly, allergic reactions (which could involve eosinophilia), hepatitis, interstitial pneumonitis, and pericarditis. Hypersensitivity reactions such as hypersensitivity myocarditis, hypersensitivity pneumonitis, angioedema, erythroderma, toxic epidermal necrolysis, palmar-plantar erythrodysesthesia, and hypereosinophilia have been reported rarely. At least two cases of pruriginous rash have been reported.

Hepatic

Hypersensitivity hepatitis associated with mesalamine appears to occur less commonly than with sulfasalazine.

A 42-year-old male with ulcerative colitis was admitted for investigation of prolonged fever associated with cholestatic liver tests. Endoscopic retrograde cholangiopancreatography demonstrated a normal biliary tree, and liver biopsy showed granulomata. The symptoms disappeared after cessation of mesalamine therapy and recurred on rechallenge.

Hepatic side effects have included hepatitis. Affected patients have often presented with rash, fever, abdominal pain, nausea, vomiting, chills, dizziness, hepatomegaly, lymphadenopathy, and laboratory abnormalities (including elevated liver function tests, eosinophilia, and leukocytosis). Cholestatic hepatitis (less than 3%), elevated transaminases (less than 3%), elevated bilirubin, jaundice, cholestatic jaundice, cirrhosis, liver necrosis, liver failure, Kawasaki-like syndrome (including changes in liver enzymes), transient elevations in liver function tests, and at least one case of granulomatous hepatitis have been reported.

Renal

Renal side effects have included decreased creatinine clearance (less than 3%), interstitial nephritis, minimal change nephropathy, nephrogenic diabetes insipidus, nephrotic syndrome, elevated blood urea nitrogen and serum creatinine, and renal failure (acute and chronic). Renal tubular dysfunction has also been reported, although a definitive causality has not been established.

Genitourinary

Genitourinary side effects have included dysmenorrhea (3%), hematuria (less than 3%), urinary frequency (2% or greater), dysuria, albuminuria, amenorrhea, breast pain, hypomenorrhea, menorrhagia, metrorrhagia, urinary urgency, urinary burning, and epididymitis. Rarely, oligospermia and infertility in men have been reported and have been attributed to sulfasalazine.

Local

Local side effects associated with the use of mesalamine enemas have included perianal irritation, pain on insertion of enema tip, hemorrhoids, and rectal pain/soreness/burning.

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