Myfadol is a phenacylpiperidine derivative patented by Tanabe Seiyaku Co., Ltd as low molecular weight non-peptide analgesic. Myfadol produces hot-plate analgesia in rodents with minimal side-effects, and when given parenterally in humans produces analgesia to experimentally-produced and postoperative pain.

Felipyrine is a 1-aryl-2-pyrrolidinone derivative exerting anti-inflammatory activity.

Quatacaine is a methylpropionanilide derivative patented by Tanabe Seiyaku Co., Ltd. As local anaesthetic.

Tiapirinol is a thiazine derivative patented by Tanabe Seiyaku Co., Ltd. as a low toxic compound useful to prevent hypohepatia. In acute toxicity tests on mice, the toxicity of Tiapirinol is lower than that of pyridoxal phosphate and other vitamin B6 derivative. Tiapirinol showed vitamin B6 activity approximately equivalent to that of pyridoxal phosphate or pyridoxine for the growth of vitamin B6 deficient rats and also for the convulsions caused by antivitamin B6 agents.

Mafoprazine is a phenylpiperazine derivative exerting postsynaptic dopamine D2 receptor blocking activity and alpha-adrenergic activity (alpha 1 receptor blocking activity and alpha 2 receptor stimulating activity). In animal models, mafoprazine demonstrated antipsychotic, aggression-inhibiting and cataleptogenic actions.

Mafoprazine is a phenylpiperazine derivative exerting postsynaptic dopamine D2 receptor blocking activity and alpha-adrenergic activity (alpha 1 receptor blocking activity and alpha 2 receptor stimulating activity). In animal models, mafoprazine demonstrated antipsychotic, aggression-inhibiting and cataleptogenic actions.

Myfadol is a phenacylpiperidine derivative patented by Tanabe Seiyaku Co., Ltd as low molecular weight non-peptide analgesic. Myfadol produces hot-plate analgesia in rodents with minimal side-effects, and when given parenterally in humans produces analgesia to experimentally-produced and postoperative pain.

Quatacaine is a methylpropionanilide derivative patented by Tanabe Seiyaku Co., Ltd. As local anaesthetic.

Myfadol is a phenacylpiperidine derivative patented by Tanabe Seiyaku Co., Ltd as low molecular weight non-peptide analgesic. Myfadol produces hot-plate analgesia in rodents with minimal side-effects, and when given parenterally in humans produces analgesia to experimentally-produced and postoperative pain.