Additionally the elderly tend to take more drugs which may interact or enhance the effects of benzodiazepines.

Of drugs used in attempted suicide, benzodiazepines are the most commonly used pharmaceutical drug, with 26% of attempted suicides involving benzodiazepines. On regular administration, maximum lorazepam serum levels are attained after three days. Therefore, lorazepam's anticonvulsant effects are more durable, thus reducing the need for repeated doses. Your symptoms may return when you stop using Ativan after using it over a long period of time. Withdrawal symptoms can, however, occur from standard dosages and also after short-term use. It is dangerous to try and purchase Ativan on the Internet or from vendors outside of the United States. The magnitude and duration of lorazepam effects are dose-related, meaning that larger doses have stronger and longer-lasting effects. Avoid using other medicines that make you sleepy. * Acute narrow-angle glaucoma – Lorazepam has pupil-dilating effects, which may further interfere with the drainage of aqueous humour from the anterior chamber of the eye, thus worsening narrow-angle glaucoma. Blood or plasma lorazepam concentrations are usually in a range of 10-300 ug/L in persons either receiving the drug therapeutically or in those arrested for impaired driving, and 300-1000 ug/L in victims of acute overdosage.