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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1888 1
1889 2
1890 1
1894 1
1896 1
1911 1
1923 1
1925 1
1935 2
1938 1
1940 2
1944 1
1945 2
1946 3
1947 10
1948 12
1949 11
1950 12
1951 20
1952 14
1953 24
1954 44
1955 38
1956 31
1957 31
1958 23
1959 41
1960 38
1961 36
1962 56
1963 135
1964 183
1965 137
1966 135
1967 145
1968 166
1969 201
1970 182
1971 208
1972 235
1973 256
1974 275
1975 303
1976 243
1977 285
1978 267
1979 320
1980 360
1981 367
1982 467
1983 541
1984 577
1985 574
1986 579
1987 614
1988 679
1989 643
1990 733
1991 757
1992 642
1993 741
1994 751
1995 736
1996 732
1997 790
1998 747
1999 723
2000 734
2001 739
2002 751
2003 728
2004 818
2005 828
2006 852
2007 911
2008 836
2009 821
2010 871
2011 915
2012 921
2013 947
2014 983
2015 984
2016 930
2017 957
2018 898
2019 950
2020 947
2021 898
2022 801
2023 644
2024 569
2025 2

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35,620 results

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Page 1
Did you mean m and p (604,891 results)?
Pharmacological Aspects of Over-the-Counter Opioid Drugs Misuse.
Sobczak Ł, Goryński K. Sobczak Ł, et al. Molecules. 2020 Aug 27;25(17):3905. doi: 10.3390/molecules25173905. Molecules. 2020. PMID: 32867117 Free PMC article. Review.
The results show that OTC opioids are misused as an alternative for illicit narcotics, or prescription-only opioids. The potency of codeine and loperamide is strongly dependent on the individual enzymatic activity of CYP2D6 and CYP3A4, as well as P-glycoprotein function. …
The results show that OTC opioids are misused as an alternative for illicit narcotics, or prescription-only opioids. The potency of codei …
Pholcodine.
Findlay JW. Findlay JW. J Clin Pharm Ther. 1988 Feb;13(1):5-17. doi: 10.1111/j.1365-2710.1988.tb00502.x. J Clin Pharm Ther. 1988. PMID: 3283158 Review.
Preclinical toxicity studies demonstrate a generally safer profile for pholcodine than codeine, although pholcodine appears to have greater depressant effects on the respiratory and cardiovascular systems in animals. ...Pholcodine appears to be devoid of addiction liabilit …
Preclinical toxicity studies demonstrate a generally safer profile for pholcodine than codeine, although pholcodine appears to have g …
Antidepressants.
Ballinger BR, Feely J. Ballinger BR, et al. Br Med J (Clin Res Ed). 1983 Jun 11;286(6381):1885-7. doi: 10.1136/bmj.286.6381.1885. Br Med J (Clin Res Ed). 1983. PMID: 6222780 Free PMC article. No abstract available.
Concise Total Synthesis of (-)-Codeine.
Mondal A, Pal S, Khatua A, Mondal A, Bisai A. Mondal A, et al. J Org Chem. 2024 Sep 6;89(17):12485-12497. doi: 10.1021/acs.joc.4c01452. Epub 2024 Aug 20. J Org Chem. 2024. PMID: 39164993
Codeine and morphine are among the few natural products that are used directly as drugs for medical treatment. ...Following that, an oxidation followed by global reduction leads to the formation of (-)-codeine. Our synthesis relies on simple and classical reactions …
Codeine and morphine are among the few natural products that are used directly as drugs for medical treatment. ...Following that, an …
A Review of Analytical Methods for Codeine Determination.
Pratiwi R, Noviana E, Fauziati R, Carrão DB, Gandhi FA, Majid MA, Saputri FA. Pratiwi R, et al. Molecules. 2021 Feb 4;26(4):800. doi: 10.3390/molecules26040800. Molecules. 2021. PMID: 33557168 Free PMC article. Review.
Codeine is derived from morphine, an opioid analgesic, and has weaker analgesic and sedative effects than the parent molecule. ...This review aims to provide critical outlooks on analytical methods applicable to the determination of codeine....
Codeine is derived from morphine, an opioid analgesic, and has weaker analgesic and sedative effects than the parent molecule. ...Thi …
Dihydrohydroxycodeinone pectinate.
BRITTAIN GJ. BRITTAIN GJ. Lancet. 1959 Oct 10;2(7102):544-6. doi: 10.1016/s0140-6736(59)91781-7. Lancet. 1959. PMID: 13855594 No abstract available.
Hycodan; dihydrocodeinone.
STEIN P, LOWY P. STEIN P, et al. Am Rev Tuberc. 1946 Apr;53:345-52. doi: 10.1164/art.1946.53.4.345. Am Rev Tuberc. 1946. PMID: 21023383 No abstract available.
35,620 results
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