Using lice shampoo here for scabies would not work to kill scabies as they typically only contain 1% permethrin where scabies pesticide based treatments contain 5% permethrin. Lice and scabies are two different creatures as lice treatments are too mild to even kill scabies eggs let alone the mites themselves.
Lice shampoo certainly work for lice but they will not work for scabies as you would just be wasting your money. Lice treatments are typically placed on the scalp for 10-20 minutes and rinsed off where scabies treatments are put on full body for 12-14 hours overnight.
When dealing with scabies you should choose a treatment that is specifically made for treating scabies as they are very complex and there are only a few types of treatments that actually work to kill both the scabies and their eggs. The reason many people think lice treatments will work for scabies is because they sometimes contain the same ingredients at a lesser percentage of the active ingredient. Here are some real scabies treatments that are both safe and effective in killing both scabies mites and eggs;
Real Scabies Treatments
Naturasil family pack here is the suggested treatment for scabies as it contains everything you need to kill the scabies mites and eggs within your body and home. They even come with extra sulfur creams and soaps.
Benzarid mitacide here can help you both eliminate scabies within your home and clean infected household items. The family pack comes with a bottle but I suggest you get an extra bottle.