February 19, 2017
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(estazolam) Tablets


ProSom (estazolam), a triazolobenzodiazepine derivative, is an oral hypnotic agent. Estazolam occurs as a fine, white, odorless powder that is soluble in alcohol and practically insoluble in water. The chemical name for estazolam is 8-chloro-6-phenyl-4Hs-triazolo[4,3-α] [1,4]benzodiazepine. The empirical formula is C16H11ClN4. The structural formula is represented as follows:

ProSom (estazolam) structural formula illustration

ProSom (estazolam) tablets are scored and contain either 1 mg or 2 mg of estazolam.

Inactive Ingredients: colloidal silicon dioxide, lactose, povidone, stearic acid, and sodium starch glycolate. In addition, the 2 mg tablets contain FD&C Red No. 40.

What are the possible side effects of estazolam (Prosom)?

Estazolam may cause a severe allergic reaction. Stop taking estazolam and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using estazolam and call your doctor at once if you have any of these serious side effects:

  • weak or shallow breathing;
  • fast or pounding heartbeats;
  • confusion, slurred speech, unusual thoughts or behavior;
  • hallucinations, agitation, aggression;
  • thoughts of suicide or hurting...

Read All Potential Side Effects and See Pictures of Prosom »

What are the precautions when taking estazolam (Prosom)?

Before taking estazolam, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, liver disease, lung/breathing problems (such as chronic obstructive pulmonary disease-COPD, sleep apnea), mental/mood problems (such as depression, thoughts of suicide), personal or family history of regular use/abuse of drugs/alcohol/other substances, personal or family history of sleepwalking, a certain muscle disease (myasthenia gravis).

Since this drug makes you drowsy, do not drive, use machinery,...

Read All Potential Precautions of Prosom »

Last reviewed on RxList: 6/19/2008
This monograph has been modified to include the generic and brand name in many instances.

Prosom - User Reviews

Prosom User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Prosom sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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