An Open Label Study of Chronic Use of BLI400 Laxative in Constipated Adults

Inclusion Criteria:

1. Male or female subjects at least 18 years of age

2. Constipated, defined by the following adapted ROME II definition:

• Fewer than 3 spontaneous defecations per week and at least one of the followingsymptoms for at least 12 weeks (which need not be consecutive) in the preceding 12 months:

• Straining during > 25% of defecations

• Lumpy or hard stools in > 25% of defecations

• Sensation of incomplete evacuation for > 25% of defecations

3. If female, and of child-bearing potential, is using an acceptable form of birthcontrol (hormonal birth control, IUD, double-barrier method, depot contraceptive,sterilized, abstinent, or vasectomized spouse)

4. Negative urine pregnancy test at screening, if applicable

5. In the Investigator's judgment, subject is mentally competent to provide informedconsent to participate in the study

Exclusion Criteria:

1. Report loose (mushy) or water stools in the absence of laxative use for more than 25%of BMs during the 12 weeks before Visit 1

2. Meet the Rome II criteria for Irritable Bowel Syndrome

3. Subjects with known or suspected ileus, gastrointestinal obstruction, gastricretention, bowel perforation, toxic colitis, toxic megacolon

4. Subjects who have had major surgery 30 days before Visit 1; appendectomy orcholecystectomy 60 days before Visit 1; abdominal, pelvic, or retroperitoneal surgery 6 months before Visit 1; bariatric surgery or surgery to remove a segment of the GItract at any time before Visit 1

5. Subjects with hypothyroidism that is being treated and for which the dose of thyroidhormone has not been stable for at least 6 weeks at the time of Visit 1

6. Subjects taking laxatives, enemas or prokinetic agents that refuse to discontinuethese treatments from Visit 1 until after completion of Visit 6

7. Subjects who are pregnant or lactating, or intend to become pregnant during the study

8. Subjects of childbearing potential who refuse a pregnancy test

9. Subjects who are allergic to any BLI400 component

10. Subjects taking narcotic analgesics or other medications known to cause constipation.

11. Subjects with clinically significant cardiac abnormalities identified at the Visit 1ECG

12. Subjects with clinically significant laboratory abnormalities, deemed as a potentialsafety issue by the Investigator, may be discontinued at the Investigator'sdiscretion.

13. Subjects who, in the opinion of the Investigator, should not be included in the studyfor any reason, including inability to follow study procedures

14. Subjects who have participated in an investigational clinical, surgical, drug, ordevice study within the past 30 days

15. Subjects with an active history of drug or alcohol abuse

16. Subjects have been hospitalized for a psychiatric condition or have made a suicideattempt during the 2 years before Visit 1

17. Subjects who withdraw consent at any time prior to completion of Visit 1 procedures