1. An agent (medication) containing theobromine and opiate, in the form of a combined preparation for use in therapy. 2. The agent of claim 1, wherein the therapy is a cough treatment. The agent according to claim 1 or 2, wherein the opiate is selected from codeine, morphine, diamorphine, thebaine, papaverine, noscapine, oripavine, fentanyl, alfamethylfentanyl, alfentanil, sufentanil, remifentanil, carfentanil, propoxyphene, oxymorphone, oxydinodiodinone, oxydodiodone , buprenorphine, etorphine, ethylmorphine, loperamide and hydrocodone, pentazocine, tramadol, typeepidine and noscapine. 4. The drug according to any one of claims 1 or 2, wherein the opiate is codeine. 5. The agent or theobromine according to any one of claims 1 or 2, wherein the opiate is administered at a dose of 0.1 to 30 mg / kg / day. The tool according to claim 4, in which codeine is administered at a dose of up to 3 mg / kg / day. Use of theobromine in combination with an opiate for the treatment of cough. 8. The use according to claim 7, wherein the opiate is selected from codeine, morphine, diamorphine, thebaine, papaverine, noscapine, oripavine, fentanyl, alfamethylfentanyl, alfentanil, sufentanil, remifentanil, carfentanil, propoxyphene, oxymorphon, oxycodidonefenodorodinodinorodinodinorodinodinafedrodinafedina, hydrodinodinodinodinodin etorphine, ethylmorphine, loperamide and hydrocodone, pentazocine, tramadol, tipepidine and noscapine. 9. The use of claim 7, wherein the opiate is codeine. The use of claim 8, wherein the opiate is administered in a dose of 0.1 to 30 mg / kg / day. The use of claim 9, wherein codeine is administered at a dose of up to 3 mg / kg / day. The use of theobromine according to claim 7, for simultaneous or sequential use with an opiate. Use of theobromine in combination with an opiate to obtain a cough treatment. 14. The use of claim 13, wherein the opiate is selected�1. Средство (медикамент), содержащее теобромин и опиат, в виде комбинированного препарата для прим