cal formula is C2H2307N. Actually Noscapine bears little resemblance to the narcotic alkaloids, either chemically or pharmacologically. The structure of morphine, codeine, and similar compounds is based on a phenanthrene nucleus, whereas Noscapine is an isoquinoline derivative (related to papaverine). It is readily absorbed after oral or parenteral administration, disappears rapidly from the bl...

Dextromethorphan or DXM is an effective and harmless cough cold suppressant available in many preparations. At maximum dosage, it mimics hallucinogenic psychoactive effects human body hence appealing for abuse. In this work, a detailed study of antitussive agent i.e. which semi-synthetic opioid replacement codeine pholcodine various linctuses has been described extensively. This review also rev...

OBJECTIVES To determine the incidence of acute primary angle-closure glaucoma in the Hong Kong Chinese population, and to identify risk factors for this condition. DESIGN Prospective study. SETTING University teaching hospital, Hong Kong. PARTICIPANTS Patients with acute primary angle-closure glaucoma presenting between 1 March 1998 and 29 February 2000. MAIN OUTCOME MEASURES Demographi...

BACKGROUND Cough is one of the most frequent symptoms in children and is the most common symptom for which children visit a health care provider. METHODS This is an observational study on acute cough associated with upper respiratory tract infection (URTI) in children. The study evaluates the epidemiology and impact of cough on quality of sleep and children's activities, and the outcome of co...