serious adverse events

(MedPage Today) -- Patients older than 65 who are treated for latent tuberculosis infection have an elevated risk of suffering serious adverse events, according to a large population study from Canada.

The U.S. Food and Drug Administration is warning consumers that Hyland’s Teething Tablets may pose a risk to children.

The FDA recommends that consumers not use this product and dispose of any in their possession. The manufacturer is issuing a recall of this product.

Hyland's Teething Tablets are manufactured to contain a small amount of belladonna, a substance that can cause serious harm at larger doses.

For such a product, it is important that the amount of belladonna be carefully controlled.

FDA is issuing this warning because the use of Hylands Teething Tablets may pose a risk to children. FDA analysis and testing identified some Hylands Teething Tablets that contained varying amounts of belladonna, a potentially toxic ingredient.

FDA has received reports of serious adverse events in children taking this product that are consistent with belladonna toxicity.

LONDON -- For chronic asthma, twice-daily use of salmeterol (Serevent) was associated with small but significant increases in serious adverse events, a meta-analysis showed.