As lorazepam can have paradoxical effects, haloperidol is sometimes given concomitantly.

How should I take Ativan?Take this medication exactly as it was prescribed for you. T. Symptoms may recur and treatment for some days may be necessary. However, in critically ill patients, propofol has been found to be superior to lorazepam both in effectiveness and overall cost; as a result, the use of propofol for this indication is now encouraged, whereas the use of lorazepam for this indication is discouraged. Valproate, inhibits the metabolism of lorazepam, whereas carbamazepine, lamotrigine, phenobarbital, phenytoin, rifampin increases the rate of metabolism of lorazepam. Lorazepam has strong sedative/hypnotic effects, and the duration of clinical effects from a single dose makes it an appropriate choice for the short-term treatment of insomnia, in particular in the presence of severe anxiety. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Some antidepressants, anti-epileptic drugs such as phenobarbital, phenytoin and carbamazepine, sedative antihistamines, opiates, antipsychotics and alcohol when taken with lorazepam may result in enhanced sedative effects. Before taking Ativan, tell your doctor if you are allergic to any drugs, or if you have:* glaucoma; * asthma, emphysema, bronchitis, chronic obstructive pulmonary disorder (COPD), or other breathing problems; * kidney or liver disease; * a history of depression or suicidal thoughts or behavior; or * a history of drug or alcohol addiction. Hydrolysis of thee above product forms the desired product lorazepam.