Durante as últimas décadas, o mundo passou por uma transformação demográfica, com um rápido crescimento da população idosa e, portanto, tanto a demanda para a manutenção da saúde deste grupo populacional, quanto o consumo de medicamentos estão aumentando. Ainda, as mudanças farmacocinéticas e farmacodinâmicas que ocorrem em idosos podem interferir diretamente nos efeitos adversos dos medicamentos e aumentar o risco de intoxicação. Além disso, há fatores externos que interferem na farmacoterapia dos idosos, tais como o uso inadequado e a falta de acesso à informação. Existem várias classes terapêuticas de medicamentos que devem ser utilizados com cautela ou evitados na população idosa, tais como antiinflamatórios, alguns anti-hipertensivos, diuréticos, digitálicos entre outros. Estes medicamentos, se não forem utilizados com cuidado, podem afetar a qualidade de vida e a segurança desta população. Assim, este trabalho visa identificar medicamentos que devem ser utilizados com cuidado em pacientes idosos para evitar intoxicações e/ou eventos adversos aos medicamentos.

In recent decades, the world has undergone a demographic transformation with a rapid growth of the elderly population, resulting in an increased demand for funds to maintain their health and drug consumption. Pharmacokinetic and pharmacodynamic changes occurring in the elderly can interfere directly in the adverse effects of drugs and increase the risk of intoxication. In addition, there are external factors interfering with the pharmacotherapy of the elderly, such as inappropriate use and the lack of access to information. Many therapeutic classes of drugs should be used with caution or avoided in the elderly population, such as anti-inflammatory and some anti-hypertensive drugs, diuretics and digitalis. If not managed carefully, these medicines can affect the safety and quality of life in the elderly. Thus, the aim of this review was to identify drugs that should be used with caution in elderly patients in order to avoid intoxication and/or adverse drug events.

The common everyday use of medicinal plants is an ancient, and still very widespread practice, whereby the need for studies on their possible toxicity and mutagenic properties. The species Coccoloba mollis has been much used in phytotherapy, mainly in cases involving loss of memory and stress. In order to investigate its genotoxic and mutagenic potential, ethanolic extracts from the leaves and roots underwent Salmonella/microsome assaying (TA98 and TA100 strains, with and without exogenous metabolism - S9), besides comet and micronucleus tests in vivo.There was no significant increase in the number of revertants/plate of Salmonella strains in any of the analyzed root-extract concentrations, although the extract itself was extremely toxic to the Salmonella TA98 strain in the tests carried out with S9 (doses varying from 0.005 to 0.5 µg/plate). On the other hand, the leaf-extract induced mutations in the TA98 strain in the absence of S9 in the highest concentration evaluated, although at very low mutagenic potency (0.004 rev/µg). Furthermore, there was no statistically significant increase in the number of comets and micronuclei, in treatments involving Swiss mice. It was obvious that extracts of Coccoloba mollis, under the described experimental conditions, are not mutagenic.

Urinalysis of acetone is important to monitor workers occupationally exposed to acetone and/or isopropanol, as well as in diagnosis of some diseases related to lipid metabolism impairment. This work shows a sensitive, simple and rapid static headspace-gas chromatographic procedure for quantitative determination of acetone in urine. The method was applied to measure acetone in 207 samples from general population volunteers, resulting in a mean level of 1.12 mg/L (± 0.47) and a range of 0.20 - 1.95 mg/L. The method is reproducible and reliable, making it suitable for routine analysis of acetone in urine.