| Article | Drug/Class | Study design | Sample size | Follow-up (months) | Withdrawal schedule |
| Burr 1977 | Diuretics and potassium supplementation | RCT | 106 | 3 | Not described |
| Dawson-Hughes 2000 | Calcium citrate/ cholecalciferol | RCT | 295 | 60 | Not described |
| Henschke 1981 | Potassium supplementation | Before-and-after case series | 33 | 3 | Not described |
| Radford 2014 | Calcium citrate | Non-randomised controlled trial | 1408 | 60 | Not described |