- COMPOSITIONS AND METHODS FOR THE TREATMENT OF SEVERE PAIN
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The invention relates to the compounds of formula I or its pharmaceutical acceptable salts, as well as polymorphs, solvates, enantiomers, stereoisomers and hydrates thereof. The pharmaceutical compositions comprising an effective amount of compounds of formula I, and methods for the treatment of severe pain may be formulated for oral, buccal, rectal, topical, transdermal, transmucosal, intravenous, parenteral administration, syrup, or injection. Such compositions may be used to treatment of chronic pain, generalized pain disorders, leukemia, cancer, chronic pain, chemotherapy induced pain, epilepsy, migraine, neuropathic pain, post herpetic neuralgia, neuralgia, pain, drug addiction, detoxification of drugs, Alzheimer's disease, multiple sclerosis, multiple sclerosis, restless legs syndrome (RLS), cluster headache, depression, fibromyalgia, amyotrophic lateral sclerosis (ALS), convulsions, partial seizures, mood-stabilizing agent and bipolar disorder.
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- COMPOSITIONS AND METHODS FOR THE TREATMENT OF SEVERE PAIN
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The invention relates to the compounds of formula (I) or its pharmaceutical acceptable salts, as well as polymorphs, solvates, enantiomers, stereoisomers and hydrates thereof. The pharmaceutical compositions comprising an effective amount of compounds of formula (I), and methods for the treatment of severe pain may be formulated for oral, buccal, rectal, topical, transdermal, transmucosal, intravenous, parenteral administration, syrup, or injection. Such compositions may be used to treatment of chronic pain, generalized pain disorders, leukemia, cancer, chronic pain, chemotherapy induced pain, epilepsy, migraine, neuropathic pain, post herpetic neuralgia, neuralgia, pain, drug addiction, detoxification of drugs, Alzheimer's disease, multiple sclerosis, multiple sclerosis restless legs syndrome (RLS), cluster headache, depression, fibromyalgia, amyotrophic lateral sclerosis (ALS), convulsions, partial seizures, mood-stabilizing agent and bipolar disorder.
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- Fused pyridazine compounds and their pharmaceutical use
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Fused pyridazine compounds STR1 wherein R1, R2, R3 and R4 are the same or different and respectively hydrogen, a halogen, hydroxy, nitro, amino, cyano, trifluoromethyl, and alkyl, an alkoxy or an alkanoylamino; one of Ra and Rb is a group of the formula wherein R5 and R6 are the same or different and respectively hydrogen, an alkyl, a phenylalkyl or a substituted phenylalkyl or a group forming a heterocycle together with the adjacent nitrogen atom and Y stands for a straight- or branched-chain alkylene which may have hydroxy group as a substituent on the chain, and the other is hydrogen, or both of Ra and Rb are the same or different and respectively a group of the formula wherein R5 and R6 are of the same meanings as defined above; W is =CH-- or =N; X is CH2, S, SO, SO2 or O; and the bond designated by a broken line in its part stands for a single bond or a double bond, or their pharmaceutically acceptable salts or hydrates and their pharmaceutical use. Said compounds possess stimulating effects on phagocytosis of leukocytes and macrophages, restorative effects on leukopenia, protective effects against infection, antitumor actions and the like and thus they are useable for the prophylaxis or therapy of human diseases accompanied by immunodeficiency.
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- PHENOTHIAZINE DERIVATIVES, THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
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Phenothiazine derivatives of formula: STR1 in which Y is hydrogen or halogen, R 1 and R 2, which may be identical or different, denote alkyl, cycloalkyl-alkyl, hydroxyalkyl or acetyloxyalkyl radicals or form, together with the nitrogen atom to which they are attached, an optionally substituted, saturated or partially unsaturated 4-to 7-membered heterocycle; and either X is oxygen, sulphur or: N-R 4, R is cycloalkyl, phenyl or--CH 2 R 3, R 3 is H, alkyl (1 to 5 C), alkenyl or alkynyl (2 to 4 C), cycloalkyl (3 to 6 C), phenyl, substituted phenyl or a heterocyclic radical, R 4 is H or--CN, except that X is not oxygen if, simultaneously, R 3 is H or alkyl, R. sub.1 and R 2 are alkyl or NR 1 R 2 forms an unsubstituted heterocycle, and Y is H; or X is: N-R 4 and R 4 forms, with R and the neighbouring atoms, an optionally substituted imidazolyl or imidazolinyl radical or a hexahydrobenzimidazolyl radical, in their isomeric forms and mixtures thereof and their acid addition salts are useful as analgesics and diuretics.
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- Modification of methadone synthesis process step
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Alkylation of diphenylacetonitrile in methadone synthesis is carried out in presence of sodium hydroxide and DMF.
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