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. 2021 Mar 25;13(4):235. doi: 10.3390/toxins13040235

Table 7.

Onset and duration of hypoesthesia and paresthesia related AEs.

TTX Dosage
AE 7.5 µg BID
(N = 25)
15 µg BID
(N = 24)
30 µg QD
(N = 25)
30 µg BID
(N = 26)
Placebo
(N = 25)
Hypoesthesia, n 3 1 7 1 0
Median Onset (h:mm) 0:10 1:38 0:07 0:16
(Range) (0:05–0:25) (1:38–1:38) (0:02–3:12) (0:16–0:16)
Median Duration (h:mm) 0:40 0:12 3:00 1:10
(Range) (0:35–0:40) (0:12–0:12) (2:30–22:10) (1:10–1:10)
Hypoesthesia Oral, n 46 38 25 25 4
Median Onset (h:mm) 0:21 0:27 0:19 0:15 0:07
(Range) (0:00–3:35) (0:07–7:03) (0:00–1:30) (0:05–6:25) (0:02–1:27)
Median Duration (h:mm) 0:39 1:15 2:51 1:30 4:22
(Range) (0:05–53:50) (0:05–5:15) (0:10–12:44) (0:15–73:30) (0:10–55:45)
Paresthesia, n 21 14 12 12 9
Median Onset (h:mm) 0:30 0:34 0:21 0:16 0:26
(Range) (0:00–6:37) (0:00–3:05) (0:04–1:13) (0:00–2:56) (0:08–3:26)
Median Duration (h:mm) 1:43 0:27 0:50 1:45 0:36
(Range) (0:03–48:00) (0:01–59:35) (0:10–5:28) (0:05–12:00) (0:15–4:00)
Paresthesia Oral, n 21 28 23 55 8
Median Onset (h:mm) 0:19 0:22 0:24 0:44 0:10
(Range) (0:05–0:51) (0:00–14:34) (0:00–3:18) (0:00–17:50) (0:08–0:23)
Median Duration (h:mm) 0:22 0:39 0:40 1:09 0:32
(Range) (0:04–3:30) (0:02–3:20) (0:01–11:00) (0:01–4:52) (0:10–2:40)

AE: adverse event; TTX: Tetrodotoxin; BID: twice daily; QD: once daily; n: number of events; h: hours; mm: minutes. Hypoesthesia oral includes AEs of hypoesthesia oral, hypoesthesia facial, pharyngeal hypoesthesia and hypoesthesia teeth.