anadin liquifast capsules are a fast-acting, pain relief medicine, containing 200mg of ibuprofen in every capsule. nothing without prescription works quicker than anadin liquifast to relieve pain, which lasts up to eight hours. these capsules are an ideal treatment for mild illness without a doctoræ- s help, or for back pain, joint or rheumatic pain, muscle ache, headaches and migraine.,effective relief from pain , fast acting , lasts for up to 8 hour