What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.

Asacol (5-ASA)


Asacol (5-ASA)

Prescription Required


You'll have option to make 4 interest-free payments by credit card once your order is confirmed using Sezzle

Generic Equivalent - Asacol (5-ASA)

Prescription Required


You'll have option to make 4 interest-free payments by credit card once your order is confirmed using Sezzle

  • Product Details


    What kind of drug is Asacol?

    Buy Asacol Online Chemical Name MESALAMINE (me-SAL-a-meen)

    Asacol is used to treat inflammatory bowel disease, such as ulcerative colitis. It works inside the bowel by helping to reduce the inflammation and other symptoms of the disease. Asacol is generally used to treat ulcerative colitis, proctitis, and proctosigmoiditis. It may also be used to prevent the symptoms of ulcerative colitis from recurring.

    Fact Table






    Approximately 28% (for delayed-release tablets)

    Legal Status

    US: Rx-only
    EU: Rx-only

    Chemical Name

    Mesalazine / 5-ASA

    Elimination Half-life

    Variable, approximately 0.5 to 1.5 hours for the parent drug (mesalazine), but the metabolite (N-acetyl-5-aminosalicylic acid) has a half-life of approximately 5 to 10 hours

    Dosage (Strength)

    Oral delayed-release tablets: 400 mg, 800 mg (Asacol HD), and other strengths depending on the brand and formulation
    Rectal suspension: 4g/60ml
    Rectal foam: 1g/application

    Pregnancy Advice

    Category B (FDA); considered safe but should be used under the advice of a healthcare provider


    Asacol, Lialda, Pentasa, Delzicol, and others depending on the region and formulation

    Protein Binding

    Approximately 43%

    PubChem CID






    ATC code






    Routes of Administration

    Oral, rectal


    Take Asacol exactly as prescribed by your doctor or indicated on the prescription label.

    Asacol is usually taken with a full glass of water. It can be taken with or without food. Consult your doctor for instructions. It is important not to crush, break, or chew the tablet. Swallow the tablet whole because the enteric-coated tablet has a special coating to protect your stomach. Breaking the pill could damage this coating.


    Before using Asacol, patients should be aware of essential safety information that may affect them. Tell your doctor if you have any of the conditions listed below as you may need special testing or dose adjustments to safely take Asacol:

    • Kidney disease
    • Liver disease
    • Pyloric stenosis
    • Congestive heart failure
    • History of allergy to sulfasalazine (Azulfidine)

    This medication must not be used during pregnancy because it may cause harm to an unborn baby. If you become pregnant or think you may be pregnant, inform your doctor immediately. It is not known whether this drug passes into breast milk. Breast-feeding while using this medication is not recommended. Consult your doctor before breast-feeding.

    Side Effects

    Every medication has side effects; however, it is rare that they may occur. Patients can usually find the complete list of side effects with their medication.

    Serious side effects may include:

    • Allergic reaction including hives, difficulty breathing, swelling of your face, lips, Tongue, or throat
    • Severe stomach pain or cramping
    • Fever
    • Headache
    • Bloody diarrhea

    Common serious side effects may include:

    • Mild nausea or vomiting
    • Stomach cramps
    • Diarrhea
    • Gas
    • Fever, sore throat, or other flu symptoms
    • Constipation
    • Headache or dizziness
    • Fatigue
    • Skin rash

    Important: Call your doctor if you find undissolved tablets in your stool.

    This is not a complete list of side effects and others may occur. Call your doctor for medical advice about additional side effects or any side effect that bothers you or that do not go away.

    Frequently Asked Questions about Asacol (5-ASA)

    What is Asacol used for?

    Asacol HD affects a substance in the body that causes inflammation, tissue damage, and diarrhea. It is used to treat moderately active ulcerative colitis in adults.

    How long can you take Asacol for?

    The usual duration of therapy with Asacol HD is 6 weeks.

    What are the side effects of taking Asacol?

    Side effects of Asacol HD can include stomach pain, cramps, and bloody diarrhea, along with fever, headache, and skin rash.

    What happens if I stop taking Asacol?

    If you stop taking Asacol HD, it’s essential to consult your doctor. Abruptly discontinuing the medication may lead to a recurrence of ulcerative colitis symptoms.

    Is Mesalazine a steroid?

    No, mesalazine (also known as mesalamine) is not a steroid. It belongs to a class of drugs called 5-aminosalicylates, which are used to treat inflammatory bowel diseases like ulcerative colitis.

    Is Mesalazine a safe drug?

    Mesalazine is generally considered safe when used as prescribed. However, like any medication, it may have side effects. Always follow your doctor’s instructions and report any unusual symptoms.

    Does Mesalazine cause hair loss?

    Hair loss is not a common side effect of mesalazine. If you experience any unusual hair loss, consult your doctor to rule out other potential causes.

    Does mesalamine make you gain weight?

    Weight gain is not a typical side effect of mesalazine. If you notice any significant changes in weight, discuss them with your healthcare provider.

    What is the difference between Mesalazine and mesalamine?

    There is no difference between mesalazine and mesalamine; they are the same medication. The names are used interchangeably.

    Can Mesalazine cause liver damage?

    While rare, mesalazine can potentially cause liver problems. If you experience symptoms like yellowing of the skin or eyes, dark urine, or abdominal pain, seek medical attention promptly.

    IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.

    Product Code : 1352

  • Product Reviews


Please wait while the page is loading. Do not hit refresh or the browser back button to avoid any loss of information.

If you have any questions or concerns, please contact our Customer Service team via the chat option on our website or calling us toll free at: 1-800-891-0844