When DD was itsy, using the Hylands teething tabs was somewhat controversial. I know there was a huge recall years ago and the company used to use nightshade in them...but I know they're still around and haven't heard any negative press lately.
What say you, A14?
(ETA: if you're comfortable using them, do you feel they work?)

DD 2/21/2012 & DS 4/1/2014
Re: Teething Tabs?
**Warning - Child Mentioned**
Me: 33, DH: 39 Unexplained Infertility
4 IUIs (chlomid) in 2013 which resulted in DS born in April 2014
TTC #2 since August 2015
5 rounds of IUIs (1 chlomid: resistent, 1 femara, 3 gonal f) = all BFN
ER March 9: 26 eggs retrieved, 19 mature and 17 fertilized, 8 made it to genetic testing, 4 normal!
FET #1 5/31 = BFN
FET#2 7/26 = BFP!
We use them. Idk if they work but sometimes I'm desperate and doing something makes me feel better.
We use them and oftentimes feel as though they help. LO has cut two teeth since Monday and the poor guy is pretty miserable. I let the tabs dissolve near his lower gums and he usually calms down/falls asleep pretty quickly afterwards.