\sˌɪmpəθəlˈɪtɪk ˈe͡ɪd͡ʒənts], \sˌɪmpəθəlˈɪtɪk ˈeɪdʒənts], \s_ˌɪ_m_p_ə_θ_ə_l_ˈɪ_t_ɪ_k ˈeɪ_dʒ_ə_n_t_s]\
Definitions of SYMPATHOLYTIC AGENTS
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Drugs that inhibit the actions of the sympathetic nervous system by any mechanism. The most common of these are the ADRENERGIC ANTAGONISTS and drugs that deplete norepinephrine or reduce the release of transmitters from adrenergic postganglionic terminals (see ADRENERGIC AGENTS). Drugs that act in the central nervous system to reduce sympathetic activity (e.g., centrally acting alpha-2 adrenergic agonists, see ADRENERGIC ALPHA-AGONISTS) are included here.
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- Malignant lymphoma in which neoplastic cells diffusely infiltrate the entire lymph node without any definite organized Patients whose lymphomas present a diffuse pattern generally have more unfavorable survival outlook than those presenting with follicular or nodular pattern.