English Medical Medical: Pharmaceuticals Contact Lens

Context 1: Of the total discontinued subjects, no subjects from either group were discontinued for regimen related reasons.
Context 2: A. TEST AND CONTROL ARITCELS:

1. Investigation Product: Irradiate Hydroxypropylmethylcellulose (HPMC) Coated Catalase Tablets (Micrococccus) with Indicator Preparation No. 8643X, Lot No. 1062C.

2. Control Product: Irradiated HPMC Coated Catalase Tablets (Bovine) with Indicator, Preparation No. 8368-B, Lot No. 09849C.

3. Source: Test and control tablets were manufactured and supplied by Pharmaceutical Sciences Operations (PSO), Allergan, Inc.

4. Storage Conditions: Test and control samples were stored at room temperature.

5. Analyses: Analytical and stability information were provided by PSO to assure potency at the time of manufacture and appropriate expiration/retest dating for investigational products.

6. Product used in Test Regimen:
Ultracare Disinfecting Solution, Lot No. 06U93.

7. Product used in Control Regimen :
Ultracare Disinfecting Solution, Lot No. 06U93.

8. Induction Materials: .........
Context 3: Although there were no regimen related changes in slit lamp findings, clinically significant findings were identified. The incidence of these findings was low and similar in both groups.
Question: Can somebody tell me in simple English what is regimen? Treatment? Or care solution? (it is in a study report on a neutralizing tablet of a care solution). Thank You!!!