1 Cancer. 2  All tobacco smoke contains chemicals that can cause cancer, and cigar smoke is no exception. 3  Regular cigar smoking increases the risk of several types of cancers, including cancers of the mouth, lip, tongue, throat, esophagus, larynx and lung. 4  Lung and heart disease.
Results Of the three nicotinic receptor agonists tested, [3H]cytisine displayed the highest affinity for the neu- ronal nicotinic receptor (Table 1). It had a significantly higher affinity of 0.145 + 0.011 nM (P < 0.05, Fig. 1A) as compared to KD values of 0.89 + 0.06 and 1.07 _+ 0.13 nM for [3H]nicotine (Fig.
An adrenergic blocking agent which produces miosis and a slight reduction in intraocular pressure. It is used mainly to reverse the mydriatic effect of sympathomimetic drugs (e.g. phenylephrine hydrochloride), or even some antimuscarinic drugs (e.g. tropicamide). Common agents include dapiprazole and moxisylyte (thymoxamine). Syn. alpha-blocker. See sympatholytic drugs.