| 0.8 mg/day | Human | human | oral | 36 months | Randomized trial in people · n = 4,665 | Henriksen 2016 |
| 0.8 mg twice daily | Human | human | oral | 24 months | Randomized trial in people · n = 1,176 | Karsdal 2015 |
| 200 IU daily | Human | human | intranasal | 5 years | Randomized trial in people · n = 557 | Chesnut 2000 |
| 50 IU/day, 5 days per week | Human | human | intranasal | 3 years | Randomized trial in people · n = 186 | Reginster 1994 |
| 50 IU daily, 5 days per week | Human | human | intranasal | 5 years | Randomized trial in people · n = 87 | Reginster 1994 |
| 100 IU | Human | human | intranasal | 1 year | Randomized trial in people | Overgaard 1989 |
| 100 IU | Human | human | subcutaneous | 2 weeks | Randomized trial in people · n = 56 | Ofluoglu 2007 |
| 0.8 mg | Human | human | oral | Not reported | Randomized trial in people | Karsdal 2008 |
| 0.15, 0.4, 1.0, or 2.5 mg daily; or 1.0 mg every other day | Human | human | oral | 3 months | Randomized trial in people · n = 277 | Tankó 2004 |
| 0.15, 0.4, 1.0, or 2.5 mg | Human | human | oral | 3 months | Randomized trial in people · n = 152 | Bagger 2005 |
| 100 IU daily | Human | human | intranasal | Not reported | Randomized trial in people · n = 120 | Arnala 1996 |
| 200 IU daily or three times weekly | Human | human | intranasal | 2 years | Randomized trial in people · n = 117 | Ellerington 1996 |
| 200 IU daily | Human | human | intranasal | three months | Randomized trial in people · n = 110 | Papadokostakis 2006 |
| 100 IU/day | Human | human | subcutaneous | 6 months | Randomized trial in people · n = 104 | Kung 2006 |
| 3 x 20 micrograms = 300 MRCU daily | Human | human | intravenous | 6 days | Randomized trial in people · n = 94 | Goebell 1979 |
| 100, 200, or 400 IU | Human | human | intranasal | 2 years | Randomized trial in people · n = 91 | Overgaard 1994 |
| 200 IU daily, 1 month on-1 month off | Human | human | intranasal | 1 year | Randomized trial in people · n = 91 | Kaskani 2005 |
| 200 IU/d | Human | human | intranasal | 2 years | Randomized trial in people · n = 81 | Overgaard 1995 |
| 50 IU/day for 5 days per week | Human | human | intranasal | 12 months | Randomized trial in people · n = 79 | Reginster 1987 |
| 200 IU daily during alternate months | Human | human | intranasal | 18 months | Randomized trial in people · n = 71 | Tóth 2005 |
| 3 x 100 U/day | Human | human | intranasal | Not reported | Randomized trial in people · n = 66 | Gobelet 1992 |
| 100 IU daily | Human | human | subcutaneous | 6 months | Randomized trial in people · n = 63 | Hwang 2006 |
| 100 IU/day | Human | human | subcutaneous | 6 months | Randomized trial in people · n = 63 | Hay 2001 |
| 200 IU daily | Human | human | intranasal | 24 months | Randomized trial in people · n = 62 | Thamsborg 1996 |
| 100 IU | Human | human | subarachnoid | Not reported | Randomized trial in people · n = 60 | Miralles 1987 |
| 8 IU/kg every 6 hours | Human | human | intramuscular | 5 days | Randomized trial in people · n = 50 | Warrell 1988 |
| 200 IU daily | Human | human | intranasal | three months | Randomized trial in people · n = 50 | Karachalios 2004 |
| 200 U/day | Human | human | Not reported | 8 weeks | Randomized trial in people · n = 45 | Sahin 2009 |
| 200 IU every other day | Human | human | intranasal | 2 years | Randomized trial in people · n = 44 | Luengo 1994 |
| 0.8 mg | Human | human | oral | Not reported | Randomized trial in people · n = 42 | Karsdal 2008 |
| 100 IU three times weekly | Human | human | subcutaneous | 2 years | Randomized trial in people · n = 40 | Healey 1996 |
| 200 IU daily | Human | human | rectal suppository | 28 days | Randomized trial in people · n = 40 | Lyritis 1999 |
| 100 IU daily | Human | human | subcutaneous | 28 days | Randomized trial in people · n = 40 | Roth 1986 |
| 200 IU/day | Human | human | Not reported | 2 months | Randomized trial in people · n = 35 | Sahin 2006 |
| 200 IU daily | Human | human | intranasal | 12 months | Randomized trial in people · n = 28 | Trovas 2002 |
| 200 UI 6-hourly | Human | human | subcutaneous | 48 h | Randomized trial in people · n = 25 | Hindley 1982 |
| 200 IU every other day | Human | human | intranasal | 6 months | Randomized trial in people · n = 21 | Gennari 1992 |
| 100 Medical Research Council Units | Human | human | Not reported | Not reported | Randomized trial in people · n = 16 | Passariello 1981 |
| 200 IU/day | Human | human | intranasal | Not reported | Randomized trial in people · n = 14 | de 2006 |
| 100 IU daily | Human | human | intranasal | 5 years | Randomized trial in people | Chesnut 2000 |