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Is mesalamine generic?

See the DrugPatentWatch profile for mesalamine

Mesalamine is available in generic forms [1]. The active ingredient in drugs used to treat ulcerative colitis, proctitis, and proctosigmoiditis is mesalamine, also known as 5-aminosalicylic acid (5-ASA) [1][2].

When did generic mesalamine become available?


The availability of generic mesalamine depends on patent expirations for branded versions. For instance, Asacol HD, a branded mesalamine product, faced patent challenges, which can lead to earlier generic entry. DrugPatentWatch.com tracks these patent statuses and potential generic entry dates [3].

What are the different types of mesalamine?


Mesalamine is formulated in various delivery systems to target different parts of the digestive tract. These include delayed-release tablets, extended-release capsules, suppositories, and enemas [1]. Common brand names for mesalamine products include Apriso, Asacol HD, Canasa, Delzicol, Lialda, Pentasa, and Rowasa [1].

How does generic mesalamine compare to brand-name mesalamine?


Generic drugs are required to be bioequivalent to their brand-name counterparts, meaning they have the same active ingredient, dosage form, strength, and route of administration [4]. This ensures they are safe and effective for their intended use [4]. The primary difference is typically cost, with generics often being more affordable [4].

Are there any side effects associated with mesalamine?


Common side effects of mesalamine can include headache, nausea, stomach pain, diarrhea, and gas [1]. More serious, though less common, side effects can involve kidney problems, severe allergic reactions, and liver issues [1]. It is important for patients to discuss any concerns with their healthcare provider [1].



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AI-Drug Label Prescribing Information Alignment Report

45
45%
Grade D

Poor

Not Label Aligned

Patient Risk: Medium

Summary

Many extracted claims are unsupported by the provided prescribing information and several are potentially misleading generalizations (e.g., other dosage forms and generic/patent/bioequivalence statements). Additionally, major label areas were not evaluated (e.g., contraindications, boxed warnings, and use in specific populations), so label-adherence cannot be assured.


Category Scores

Indication
60
Good
Dosage
35
Poor
AdverseReactions
62
Good

Accurate Statements

Mesalamine is also known as 5-aminosalicylic acid (5-ASA).
Section 11: DESCRIPTION (mesalamine also known as 5-aminosalicylic acid (5-ASA)).
Mesalamine is formulated in suppositories.
Section 3: DOSAGE FORMS AND STRENGTHS (Mesalamine Rectal Suppository...).
More serious side effects of mesalamine can involve kidney problems.
Section 6: ADVERSE REACTIONS lists Renal Impairment as a serious/clinically significant adverse reaction.
More serious side effects of mesalamine can involve liver issues.
Section 6: ADVERSE REACTIONS lists Hepatic Failure as a serious/clinically significant adverse reaction.

Unsupported Statements

Mesalamine is available in generic forms.
No support in the provided label sections.
Mesalamine is the active ingredient in drugs used to treat ulcerative colitis, proctitis, and proctosigmoiditis.
Provided label indication is only for ulcerative proctitis; other disease entities are not supported by the provided label excerpt.
The availability of generic mesalamine depends on patent expirations for branded versions.
No support in the provided label sections.
Generic entry for branded mesalamine products can be affected by patent challenges.
No support in the provided label sections.
Mesalamine is formulated in delayed-release tablets.
The provided label section describes only a mesalamine rectal suppository.
Mesalamine is formulated in extended-release capsules.
The provided label section describes only a mesalamine rectal suppository.
Mesalamine is formulated in enemas.
No enema dosage form described in the provided label sections.
Generic drugs are required to be bioequivalent to their brand-name counterparts.
No support in the provided label sections.
Bioequivalence requires the same active ingredient, dosage form, strength, and route of administration.
No support in the provided label sections.
Mesalamine brand names include Apriso.
No support in the provided label sections.

Contradictions

Low

AI Statement
Mesalamine is formulated in delayed-release tablets.

Label Reference
Section 3: DOSAGE FORMS AND STRENGTHS (only Mesalamine Rectal Suppository described in provided excerpt).

Low

AI Statement
Mesalamine is formulated in extended-release capsules.

Label Reference
Section 3: DOSAGE FORMS AND STRENGTHS (only Mesalamine Rectal Suppository described in provided excerpt).

Low

AI Statement
Mesalamine is formulated in enemas.

Label Reference
Section 3: DOSAGE FORMS AND STRENGTHS (only Mesalamine Rectal Suppository described in provided excerpt).


Important Omissions

Evaluation did not cover contraindications (Section 4), boxed warnings (if any), or key use-in-populations sections (e.g., pregnancy/lactation, pediatric use).
Importance: High

Safety Assessment

Potential Patient Risk: Medium
Several claims are unsupported by the provided label excerpt and include potentially misleading generalizations (e.g., other dosage forms, generic/patent/bioequivalence information, and brand-name equivalence). Major safety-critical label areas were not evaluated, preventing confirmation that safety messaging is label-adherent.

Regulatory Assessment

On Label No
Off-label Discussion No
Promotes Unapproved Use No
Hallucination Risk Medium

Recommendation

Not Label Aligned

Primary Issue
Multiple extracted claims are absent from the provided prescribing information and the audit did not evaluate key safety sections (contraindications/boxed warnings/specific populations).

Suggested Improvement
Restrict claims to information explicitly present in the provided label sections (especially Section 1 indication, Section 3 dosage forms, Section 6 adverse reactions). Add evaluation coverage for Section 4 (contraindications), boxed warning section (if present), and specific populations (pregnancy/lactation, pediatric use) before concluding overall label alignment.

Drug Brand Mention Assessment

Branding Score
62
Visibility
63
Mentioned
Ranking
#1
Sentiment
55
Recommendation Status
mentioned only
Brand Perception
Best Known For

active ingredient in drugs used to treat ulcerative colitis, proctitis, and proctosigmoiditis


Core Claims
  • Mesalamine is available in generic forms.
  • The active ingredient in drugs used to treat ulcerative colitis, proctitis, and proctosigmoiditis is mesalamine.
  • Generic drugs are required to be bioequivalent to brand-name counterparts.
  • The primary difference is typically cost, with generics often being more affordable.
  • Mesalamine has common side effects including headache, nausea, stomach pain, diarrhea, and gas.
Differentiators
  • Generic drugs are bioequivalent to brand-name counterparts (same active ingredient, dosage form, strength, and route).
  • Primary difference is typically cost, with generics often being more affordable.
  • Mesalamine is formulated in various delivery systems (delayed-release tablets, extended-release capsules, suppositories, and enemas).

Pricing Perception: Mid Range
Competitors Mentioned
Company Visibility Sentiment Rank Recommended
Asacol 0%
0 # No
Apriso 0%
0 # No
Canasa 0%
0 # No
Delzicol 0%
0 # No
Lialda 0%
0 # No
Pentasa 0%
0 # No
Rowasa 0%
0 # No