Aminoglycoside antibiotics are effective against aerobic and anaerobic microorganisms.

Broad spectrum antibiotics are used in super-infections where there are multiple types of bacteria causing infection.

Sulfonamide acts by interfering with the action of bacterial dihydrofolate reductase, inhibiting synthesis of tetrahydrofolic acid.

Opioids are contraindicated in patients with impaired pulmonary function.

Naloxone rapidly displaces opioids that are bound to the receptor in patients with opioids overdose.

Barbiturates may cause malignant hyperthermia in susceptible patients.

Co-administration of monoamine oxidase inhibitor and serotonin reuptake inhibitor may lead to “serotonin syndrome”.

The use of bromocriptine reduces the effectiveness of antipsychotics in managing patient with psychosis.

The use of phenytoin in patients with seizure may cause gingival hyperplasia.

Ranitidine is used as an adjunct drug during anesthesia to prevent from allergic reaction.

Guedel’s sign refers to stages based on depth of central nervous stimulation with anesthesia.

Etomidate may cause a decrease in plasma cortisol & aldosterone levels.

Inhaled anesthetic gas with high blood:gas partition coefficient will be highly soluble in blood.

The quaternary form of local anesthetic agent can directly penetrate neuronal membrane.