【Remedy】 ,  【cure】 ,  【medicine】 ,  【medicament】 ,  【medication】 ,  【specific】 ,  【physic】  are comparable when they mean something prescribed or used for the treatment of disease.

【Remedy】 applies to a substance or treatment that is known or regarded as effective in bringing about recovery or restoration of health or the normal functioning of the body.

【Cure】 , more positive than  【remedy】 in implying complete recovery or restoration of health, is a common term to designate anything advocated as being or thought to be conducive to complete recovery.

【Medicine】 is the ordinary term for a substance or preparation taken internally in treating a disturbance of the normal functions of the body.

【Medicament】  and  【medication】 are general terms used especially by doctors and pharmacists for all medicinal substances and preparations whether taken internally or applied externally.

Sometimes, however,  【medicament】 is applied specifically to a medicinal substance or compound that is the active ingredient of a 【remedy】 and  【medication】 , to a compounded 【remedy】 containing one or more medicaments together with adjuvants (as flavoring agents and vehicles).

【Specific】 is applied to something, usually a drug, known to be effective in curing a 【specific】 disease.

【Physic】  is an old-fashioned equivalent of  【medicine】 , but in modern use it has specialized to become synonymous with purgative or cathartic.