Patient case (clinical description): A 43-year-old woman, gravida 3 para 3, comes to the clinic complaining of recently painful menstrual cycles.  The patient's last menstrual period was 2 weeks ago. Urine β-hCG is negative. Menarche was at age 12, and menstrual periods occur every 28 days and lasts for 5 days.  She is sexually active with her husband and does not have pain with intercourse. BMI is 23 kg/m2 and Vital signs are normal.  On physical examination, the uterus is uniformly enlarged and tender. She is candidate for hysterectomy with the diagnosis of adenomyosis.

Patient's own account: I'm 43, and I paid a visit to my doctor because my last few periods were insanely painful. My last periods were 2 weeks ago. I already had three pregnancies that gave me the three lovely children. I did a urine test to check for potential pregnancy, and it came back negative. I started to have my periods at the age of 12, and I have been pretty regular with periods every 28 days for 5 days. I'm sexually active with my husband and I do not have any pain when we have sex. My BMI is 23 and my vitals were normal. The doctor performed a physical exam and found that my uterus was tender and enlarged. She proposed me a hysterectomy and diagnosed me with adenomyosis.

Clinical trial: Study to Evaluate the Pharmacokinetics of Mucinex 600 mg Extended-release Bi-layer Tablet in Healthy Volunteers

Eligibility criteria:
Inclusion Criteria:

          1. Males and/or females between the ages of 19 and 55 years, inclusive.

          2. Females of childbearing potential must have been using 1 of the following acceptable
             birth control methods:

               1. Intra-uterine device (IUD) in place for at least 3 months prior to Day 1 through
                  30 days beyond study completion or first menstrual period.

               2. Barrier method (condom or diaphragm) with spermicide for at least 7 days prior to
                  screening through 30 days beyond study completion or first menstrual period
                  (whichever is longer).

               3. Stable hormonal contraceptive (e.g., PO, depo injection, transdermal patch, or
                  vaginal ring) for at least 3 months prior to Day 1 through 30 days beyond
                  completion of study or first menstrual period.

             Note: Abstinence is not an acceptable form of contraception; however, abstinent female
             subjects may have been admitted to the study if they agreed, and signed a statement to
             the effect, that upon becoming sexually active, would use a condom with spermicide
             from screening through 30 days beyond completion of the study.

          3. Females of non-childbearing potential must have been surgically sterile (bilateral
             tubal ligation with surgery at least 6 months prior to Day 1 or hysterectomy and/or
             bilateral oophorectomy at least 3 months prior to Day 1) or postmenopausal >2 years
             prior to Day 1. A follicle stimulating hormone (FSH) level >40 miU/mL must be obtained
             and recorded for any postmenopausal females.

          4. Good general health as determined by the PI's review of medical history, physical
             examination, vital sign measurements, electrocardiogram (ECG), and clinical laboratory
             measures.

          5. Within 15% of ideal body weight (Table of 'Desirable Weights of Adults' Metropolitan
             Life Insurance Company, 1983).

          6. Non-tobacco users, who had not used nicotine or nicotine-containing products for at
             least 365 days prior to Day 1.

          7. Able to read, understand, and sign the informed consent form (ICF), after the nature
             of the study had been explained.

          8. Negative urine screen for drugs of abuse and alcohol at screening and each check-in.

          9. If female, negative finding on serum pregnancy test at screening and each check-in.

        Exclusion Criteria:

          1. Clinically significant abnormalities detected by medical history, physical
             examination, vital sign measurements, ECG, or clinical laboratory findings (as
             determined by the PI/designee) including a hemoglobin value <12 g/dL at screening. If
             a subject's hemoglobin drops below 11.0 g/dL during the study, the subject may be
             dropped from the study at the discretion of the PI.

          2. Any disease or condition that could impact absorption, distribution, metabolism, or
             elimination of the study drugs (as determined by the PI/designee).

          3. Alcoholism or medicinal product or drug abuse within the past 2 years or excessive
             alcohol consumption (more than 10 units per week) (1 unit is defined as 5 ounces of
             wine, 12 ounces of beer, or 1.5 ounces of spirits (i.e., 'hard' liquor such as gin,
             whiskey, or vodka, et. al.). The subject could not experience tolerance, withdrawal,
             compulsive use, or substance related problems such as medical complications,
             disruption in social and family relationships, vocational or financial difficulties,
             or legal problems.

          4. Females who were pregnant or nursing.

          5. History of hypersensitivity reaction to guaifenesin.

          6. Receipt of an investigational drug within 30 days prior to Day 1.

          7. Abnormal diet (for whatever reason) during the 30 days prior to Day 1.

          8. Donation of blood or significant loss of blood within 56 days or plasma within 14 days
             prior to Day 1.

          9. Known or suspected use of illicit drugs.

         10. The use of any medication (with the exception of hormonal contraceptives for women of
             childbearing potential) for 14 days or 5 half-lives of the drug (whichever is longer)
             prior to Day 1.

         11. Test positive for Hepatitis B surface antigen, Hepatitis C antibodies, or human
             immunodeficiency virus (HIV).
No condition on gender to be admitted to the trial.
Accepts Healthy Volunteers
Subject must be at least 19 Years old.
Subject must be at most 55 Years

Eligibility (NLI label): Entailment