Lamisil is the consumer brand name for terbinafine hydrochloride.  Lamisil is often used to treat fungal infections (onychomycosis) of the toes and finger nails.  There are different strengths of Lamisil and the FDA warnings concern the prescribed versions and not the over-the-counter versions. 

Adverse Side Effects of Lamisil
Lamisil has been linked to congestive heart failure and liver failure.  Congestive heart failure is more prevalent in patients with a previous history of congestive heart failure.  Nausea, dark urine, skin discolorations are just a few of the signs of liver failure.  While there are few if any drugs free of side effects, consulting your physician to determine the most effective treatment is urged.  Studies are currently underway

Current Status of Lamisil
The FDA has issued warnings about the use of prescribed Lamisil.  They urge that the benefits must be weighed against the risks like any other drug.  If you have suffered injuries related to the use of Lamisil, contacting a personal injury attorney specializing in defective medical products would help preserve your legal rights and your ability to recover for your injuries.