Please use the search engine or one of the indexes to see if the information you need is already online. Please see Subscriber info for details. She's a really nice dog most of the time but won't let me cut her toenails. She just won't let anyone touch her feet. The most commonly used sedative in veterinary medicine is probably acepromazine.
Sedatives help but can be insufficient as many dogs can resist the effects when very excited.
Bulldogs are pretty prone to interdigital pyoderma, so there may be some reason for her to resist having her feet held. It would be worth having your dog examined for this. The best long term approach would probably be to work on being able to touch her feet for now, without worrying about her nails. Take her to the vet to have them trimmed so that the fights over this are not associated with you. Most bulldogs are easily distracted with food treats and you might be able to touch a foot while giving her a treat.