0
0.25
0.5
0.75
1
1.25
1.5
1.75
2+
Hydrogen Per..
93%
[-13-100%]
1
$1
552
very limited data
Cost
Studies
Patients
Improvement
Relative Risk
Quercetin
93%
[73-98%]
3
$5
346
very limited data
Casirivimab/i..
93%
[79-97%]
3
$2,100
3,061
variant dependent
Ivermectin
85%
[77-90%]
17
$1
19,764
Iota-carragee..
80%
[22-95%]
1
$1
394
very limited data
HH-120
76%
[19-93%]
1
$500
177
very limited data
Nitric Oxide
75%
[57-86%]
1
$11
625
very limited data
Paxlovid
67%
[-720-99%]
1
$1,390
1,670
independent trials refused
Nitazoxanide
66%
[-741-99%]
1
$4
505
very limited data
Bromhexine
65%
[-212-96%]
2
$5
422
very limited data
Chlorhexidine
61%
[3-84%]
1
$1
76
very limited data
Bamlaniv../e..
57%
[33-72%]
1
$1,250
965
variant dependent
Tixagev../c..
54%
[39-66%]
11
$855
24,810
variant dependent
Phthalocyanine
54%
[-8-80%]
1
$5
5,040
very limited data
Diet
50%
[41-58%]
28
$0
693,236
Nigella Sativa
46%
[15-65%]
4
$5
907
Alkalinization
45%
[-22-76%]
1
$1
80
very limited data
Povidone-Iod..
45%
[20-62%]
1
$1
1,354
very limited data
Adintrevimab
43%
[-169-88%]
2
$2,100
2,483
intramuscular
Sunlight
41%
[20-56%]
4
$0
19,635
Exercise
39%
[33-44%]
65
$0
1,936,042
Vitamin A
39%
[-1-63%]
4
$2
21,539
Melatonin
38%
[-6-64%]
3
$1
11,986
limited data
Probiotics
38%
[12-56%]
9
$5
17,086
Curcumin
36%
[11-55%]
3
$5
12,149
limited data
Selenium
36%
[-59-74%]
3
$1
21,330
limited data
Hydroxychlor..
33%
[26-40%]
106
$1
190,589
Vitamin D
31%
[24-38%]
61
$1
141,727
Sleep
30%
[22-38%]
15
$0
429,001
Budesonide
28%
[12-41%]
3
$4
22,987
limited data
Fluvoxamine
27%
[18-35%]
5
$4
29,766
Metformin
26%
[22-30%]
78
$10
244,695
N-acetylcys..
26%
[20-32%]
1
$1
0
very limited data
Vitamin B12
26%
[-2-46%]
2
$1
11,354
limited data
Molnupiravir
24%
[-1-43%]
1
$707
1,527
mutagenic/teratogenic
Zinc
22%
[7-36%]
18
$1
38,968
Vitamin C
18%
[4-30%]
16
$1
59,941
Famotidine
16%
[4-27%]
12
$5
66,229
UDCA
15%
[2-26%]
12
$15
36,975
Spironolactone
13%
[-21-37%]
5
$5
27,159
Colchicine
12%
[-21-36%]
9
$1
3,222
Antiandrogens
7%
[-3-16%]
25
$5
89,849
Aspirin
6%
[-2-13%]
39
$1
146,041
Ibuprofen
-1%
[-10-8%]
10
$1
53,727
Cannabidiol
-11%
[-115-43%]
6
$25
16,792
Vitamin B9
-11%
[-47-15%]
11
$1
54,354
Acetaminoph..
-21%
[-37--8%]
14
$1
532,270
Lactoferrin
-36%
[-218-42%]
2
$5
259
very limited data
Prophylaxis studies (pooled effects)
c19early.org
March 2024
Favors treatment
Favors control