This is a randomized, double-blinded, placebo-controlled, crossover study to evaluate the pressor effects of pseudoephedrine when administered with TR-701 FA in healthy adult volunteers.

Eligible subjects will be randomized to 1 of 2 possible treatment sequences (N=9 per sequence) on Study Day 1. Subjects will receive oral 200 mg TR 701 FA or Placebo for TR 701 FA once daily for 5 days during each treatment period, with a 2 day washout between periods (72 hours between doses). On Study Day 5 of each treatment period, subjects will also receive oral 60 mg PSE.

Inclusion Criteria:

• Male or female subjects between 18 and 45 years of age, inclusive
• Healthy males and females with no clinically significant abnormalities identified by a detailed medical history
• Body mass index ≥ 19.0 kg/m2 and ≤ 31.0 kg/m2

Exclusion Criteria:

• Systolic blood pressure > 130 mmHg or < 90 mmHg measured after 10 minutes supine at the Screening Visit and Study Day 1
• Diastolic blood pressure > 90 mmHg or < 60 mmHg measured after 10 minutes supine at the Screening Visit and Study Day 1
• Heart rate > 90 bpm or < 50 bpm measured after 10 minutes supine at the Screening Visit and Study Day
• Known allergy or hypersensitivity to PSE