This study is interesting. As always consult your doctor before trying any of this. Trial Data is easier to read in the attachment

ZIDS, a combination of Zinc Iodide and Dimethyl Sulfoxide (DMSO)

The ZIDS formulation is 30% DMSO and 0.2% Zinc Iodide. It showed potential benefits for chronic respiratory diseases, including COPD, in a small retrospective observational analysis.

ZIDS is not a commercially available, licensed medication for COPD. It is a specific formulation mentioned in research, particularly a study on ResearchGate titled "Zinc Iodide-Dimethyl Sulfoxide Composition in Treatment of Chronic Respiratory Diseases," which involved seven COPD patients (ages 45–83) treated with ZIDS for 30 days. The study reported improvements in symptoms such as cough, dyspnea, and exercise capacity

From the attached study. Table 1: Clinical Changes at Three Time Points (Day 1, Day 15, Day 30)

Parameter Day 1 Day 15 Day 30
Severe Cough - Improved
Dyspnea - Improved
Sputum Secretion - Reduced
Fever Reduction - Further Reduced
Chest Tightness - Reduced
Exercise Capacity - Increased
Sleep Quality - Improved
Energy Levels - Increased
Table 2: mMRC Scale and Functional Improvements

After 30 days, all seven patients showed overall improvement, with no additional adverse effects reported compared to baseline.
This study suggests potential benefits, but it involved only seven patients and used a combination (ZIDS), not pure DMSO, limiting its generalizability. Larger controlled trials are needed, and currently, ZIDS is not FDA-approved or MHRA-approved for COPD, making its use off-label and controversial.

In the trial
All patients received treatment with 10 ml ZIDS solution mixed with 200ml of water three times daily 2 hours after meals at home. The patients were allowed to take all the medications for COPD and comorbidities in the same regimen and doses before exacerbations; no additional medications were added besides the ZIDS solution.

From the attached document: Table 5: Functional pulmonary test results
Day 1
FVC(%) = 47.5 FEV1(%) 41.8
Day 15
FVC(%) = 71.3 FEV1(%) 73.5
Day 30
FVC(%) = 75.8 FEV1(%) 74.6