Different Oral Doses of Clindamycin in Preventing Post-operative Sequelae of Lower Third Molar Surgery

Inclusion Criteria:

• Child-bearing potential or non-child-bearing potential female or male, non-smoker, ≥ 18 and ≤65 years of age at the time of signing the informed consent, weighing >50kg.
• Non-child-bearing potential female subject is defined as follows:

1. Post-menopausal state: absence of menses for 12 months prior to drugadministration or hysterectomy with bilateral oophorectomy at least 6 monthsprior to drug administration.
2. Surgically sterile: hysterectomy, bilateral oophorectomy, or tubal ligation atleast 6 months prior to drug administration.

• Capable of consent.
• Patient scheduled to undergo the removal of bony impacted mandibular molar undershort-acting local anesthetic (e.g. mepivacaine, articaine or lidocaine)preoperatively
• Patient who has signed a written informed consent obtained prior to any study-relatedprocedures
• Patient able to understand and comply with protocol requirements and instructions
• Female patient of childbearing potential must be willing to use a highly efficientbirth control method during the study

Exclusion Criteria:

• Clinically significant illnesses within 4 weeks prior to the administration of thestudy medication.
• Clinically significant surgery within 4 weeks prior to the administration of the studymedication.
• Any clinically significant abnormality found during the medical screening.
• Any reason which, in the opinion of the Investigator, would prevent the subject fromparticipating in the study.
• Abnormal laboratory tests judged clinically significant.
• Positive testing for hepatitis B, hepatitis C, or HIV at screening.
• Electrocardiographic abnormalities (clinically significant) or vital signabnormalities (systolic blood pressure lower than 90 over 140 mmHg, diastolic bloodpressure lower than 50 or over 90 mmHg, or heart rate less than 50 or over 100 bpm) atscreening.
• BMI≥ 30.0kg/m2.
• History of significant alcohol abuse within six months prior to the screening visit orany indication of the regular use of more than fourteen units of alcohol per week orpositive alcohol breath test at screening. History of drug abuse or use of illegaldrugs. Alcohol abuse is defined as the consumption of more than 90ml of liquor orspirits or 530ml of beer per day, for consecutive days during the 6-months period.Drug abuse is defined as any recreational drug for 5 consecutive days during the 6-month period.
• Patient with any known hypersensitivity to clindamycin or other related drugs (e.g.,lincomycin), paracetamol or ibuprofen; having developed hypersensitivity reactions,including symptoms of asthma, rhinitis, angioedema or urticaria.
• History of allergic reactions to heparin.
• Use of any drugs known to induce or inhibit hepatic drug metabolism (examples ofinducers: barbiturates, carbamazepine, phenytoin, glucocorticoids, rifampin/rifabutin;examples of inhibitors: antidepressants, cimetidine, diltiazem, erythromycin,ketoconazole, monoamine oxidase inhibitors, neuroleptics, verapamil, quinidine) within 30 days prior to administration of the study medication.
• Patient with current or chronic history of liver disease, or known hepatic or biliaryabnormalities
• Patient with a current or chronic history of severe renal impairment
• Patient with severe heart failure (New York Heart Association (NHYA) Class IV)
• Patient with history of gastrointestinal bleeding or perforation, related to previousantibiotics or NSAIDs therapy; gastrointestinal haemorrhage, cerebrovascularhaemorrhage or of other evolving haemorrhage; an active, or history of recurrentpeptic ulcer/haemorrhage (two or more distinct episodes of proven ulceration orbleeding)
• Patient with inflammation or ulcerative disease of the oral mucosa
• Patient with known systemic lupus erythematosus
• Patient who undergoes an extraction of contralateral molar in the same procedure or abony-impacted molar
• Patient treated by antibiotics, analgesics or nonsteroidal anti-inflammatory drugs (NSAIDs) within the 3 days prior to the day of randomization (or within 5 times theelimination half-life whichever the longest)
• Patient who received other antibiotics or analgesic than short-acting preoperative orintraoperative local anesthetic agents within 12 hours before the start of the surgeryor peri-operatively until randomization
• Women with positive results on a urine pregnancy test or breastfeeding women or womenof childbearing potential without an effective contraception
• Patient having any current dental or medical condition that could prevent safeparticipation in this study
• Unwillingness or inability to follow the procedures outlined in the protocol
• Use of prescription medication within 14 days prior to administration of studymedication or over-the-counter products (including natural food supplements, vitamins,garlic as supplement) within 7 days prior to administration of study medication,except for topical products without systemic absorption.
• Difficulty to swallow study medication.
• Use of any tobacco products in the 90 days preceding drug administration.
• Any food allergy, intolerance, restriction or special diet that could, in the opinionof the Investigator, contraindicate the subjects' participation in this study.
• A depot injection or an implant of any drug within 3 months prior to administration ofstudy medication.
• Subjects with a clinically significant history of tuberculosis, epilepsy, asthma,diabetes, psychosis, or glaucoma will not be eligible for this study.
• Clinically significant history of diarrhea subsequent to administration ofantibacterial agents or antibiotics.
• Additional exclusion criteria for females only:

1. Breast-feeding subject.
2. Positive urine pregnancy test at screening
3. Female subjects of childbearing potential having unprotected sexual intercoursewith any non-sterile male partner (i.e., male who has not been sterilized byvasectomy for at least 6 months) within 14 says prior to study drugadministration. Acceptable methods of contraception:
4. condom + spermicide,
5. diaphragm + spermicide,
6. intra-uterine contraceptive device (placed at least 4 weeks prior to studydrug administration