Volcanoes, Magma, and Volcanic Eruptions. Since volcanic eruptions are caused by magma (a mixture of liquid rock, crystals, and dissolved gas) expelled onto the Earth's surface, we must first discuss the characteristics of magma and how magmas form in the Earth. Characteristics of Magma. Types of Magma. Types of magma are determined by chemical composition of the magma.
Benzodiazepines. Anti-anxiety drugs known as benzodiazepines inhibit nerve-cell excitability in the brain and are considered to be the treatment of choice. They relieve withdrawal symptoms, help prevent progression to delirium tremens, and reduce the risk for seizures.hen used by themselves, however, they do not appear to reduce seizures or delirium associated with withdrawal. Other Supportive Drugs. Beta blockers, such as propranolol (Inderal) and atenolol (Tenormin), are sometimes used in combination with benzodiazepines.
On long-term use, dependence is now a recognized risk, and abuse, orally, intravenously and by snorting is a burgeoning world-wide concern. Nonetheless, the benzodiazepines are still regarded as useful drugs providing they are prescribed appropriately in the various indications, such as anxiety and insomnia, which tend to be chronic conditions.