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Table 3 Adverse reactions to peanut OIT while on Ketotifen (day 2-week 4)

From: Effect of ketotifen premedication on adverse reactions during peanut oral immunotherapy

Adverse reactions and treatment

Build-up doses in clinic

Home doses

Ketotifen

Placebo

Ketotifen

Placebo

Total no. of doses of OIT, n

4

2

108

33

Total no. of missed OIT doses, n

-

-

-

-

Total no. of patients reporting symptoms

3

1

4

2

Total no. of doses with symptoms, n (% of OIT doses)

3/4 (75%)

2/2 (100%)

54/108 (50%)

27/33 (82%)

Anaphylaxis, n (% of OIT doses)

-

-

1/108 (1%)

1/33 (3%)

Symptoms n, (% of OIT doses)

Ketotifen

Placebo

Ketotifen

Placebo

Gastrointestinal

3/4 (75%)

2/2 (100%)

50/108 (46%)

27/33 (82%)

Cutaneous

-

1/2 (50%)

1/108 (1%)

6/33 (18%)

Lower respiratory

-

-

6/108 (6%)

2/33 (6%)

Upper respiratory

-

-

2/108 (2%)

-

Oropharyngeal

-

-

1/108 (1%)

-

Cardiovascular

-

-

-

-

Other

-

-

14/108 (13%)B

2/33 (6%)B

Treatment n, (% of OIT doses)

Ketotifen

Placebo

Ketotifen

Placebo

Epinephrine

-

-

-

1/33 (3%)

Diphenhydramine

-

-

1/108 (1%)

1/33 (3%)

Cetirizine**

1/4 (25%)

-

7/108 (6%)

5/33 (15%)

Prednisone

-

-

-

1/33 (3%)

Salbutamol or other inhaled medication

-

-

1/108 (1%)

-

  1. BOther reported symptoms included: fever, headache, fatigue, pallor.
  2. **Other second generation antihistamine.