<p>As with all alpha-1-blockers in some subjects, in particular patients receiving antihypertensive medications or nitrates, postural hypotension with or without symptoms (dizziness, fatigue, sweating) may develop within a few hours following administration. In such cases, the patient should lie down until the symptoms have completely disappeared. These effects are transient, occur at the beginning of treatment and do not usually prevent the continuation of treatment. The patient should be warned of the possible occurrence of such events. As with all alpha1-receptor blockers, Alfuzosin Hydrochloride should be used with caution in patients with acute cardiac failure. Care should be taken when Alfuzosin Hydrochloride is administered to patients who have had a pronounced hypotensive response to another alpha-1-blocker. Treatment should be initiated gradually in patients with hypersensitivity to alpha-1-blockers. Alfuzosin Hydrochloride should be administered carefully to patients being treated with antihypertensives. Blood pressure should be monitored regularly, especially at the beginning of treatment. Patients with congenital QTc prolongation, with a known history of acquired QTc prolongation or who are taking drugs known to increase the QTc interval should be evaluated before and during the administration of Alfuzosin Hydrochloride. In coronary patients, the specific treatment for coronary insufficiency should be continued. If angina pectoris reappears or worsens Alfuzosin Hydrochloride should be discontinued.&nbsp; As there are no clinical safety data available in patients with severe renal impairment (creatinine clearance &lt; 30ml/min), Alfuzosin Hydrochloride 10mg prolonged released tablets should not be administered to this patient group. Patients should be warned that the tablet should be swallowed whole. Any other mode of administration, such as crunching, crushing, chewing, grinding or pounding to powder should be prohibited. These actions may lead to inappropriate release and absorption of the drug and therefore possible early adverse reactions. The &lsquo;Intraoperative Floppy Iris Syndrome&rsquo; (IFIS, a variant of small pupil syndrome) has been observed during cataract surgery in some patients on or previously treated with alpha-1-blockers. Although the risk of this event with Alfuzosin Hydrochloride appears very low, ophthalmic surgeons should be informed in advance of cataract surgery of current or past use of alpha-1-blockers, as IFIS may lead to increased procedural complications. The ophthalmologists should be prepared for possible modifications to their surgical technique. Alfuzosin Hydrochloride 10mg prolonged release tablets contain hydrogenated castor oil which may cause stomach upset and diarrhoea.</p>