| Author, date and country | Patient group | Study type (level of evidence) | Outcomes | Key results | Study weaknesses |
|---|---|---|---|---|---|
| Noker PE and Tephly TR 1980, USA | Cynomolgus monkeys | Experimental study | Metabolic acidosis | Did not develop in treated monkeys | |
| Effects of 5-fTHF or sodium folate following methanol poisoning are assessed | Serum formate level | Lower than in untreated monkeys: (p<0.05) |