Uses Diazepam is used to treat anxiety, alcohol withdrawal, and seizures. It is also used to relieve muscle spasms and to provide sedation before medical procedures. This medication works by calming the brain and nerves. Diazepam belongs to a class of drugs known as benzodiazepines. How to use Valium Read the Medication Guide provided by your pharmacist before you start taking diazepam and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Take this medication by mouth with or without food as directed by your doctor. If you are using the liquid form of this medication, carefully measure the dose using a special measuring device/spoon. Do not use a household spoon because you may not get the correct dose. If you are using the concentrated solution, use the medicine dropper provided and mix the measured dose with a small amount of liquid or soft food (such as applesauce, pudding). Take all of the mixture right away. Do not store the mixture for later use. The dosage is based on your medical condition, age, and response to treatment. Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of side effects will increase. Properly stop the medication when so directed. If you suddenly stop using this medication, you may have withdrawal symptoms (such as shaking, abdominal/muscle cramps, vomiting, sweating, anxiety, restlessness, seizures). To help prevent withdrawal, your doctor may lower your dose slowly. Withdrawal is more likely if you have used diazepam for a long time or in high doses. Tell your doctor or pharmacist right away if you have withdrawal. When this medication is used for a long time, it may not work as well. Talk with your doctor if this medication stops working well. Though it helps many people, this medication may sometimes cause addiction. This risk may be higher if you have a substance use disorder (such as overuse of or addiction to drugs/alcohol). Take this medication exactly as prescribed to lower the risk of addiction. Ask your doctor or pharmacist for more details. Avoid eating grapefruit or drinking grapefruit juice while using this medication unless your doctor or pharmacist says you may do so safely. Grapefruit can increase the chance of side effects with this medicine. Ask your doctor or pharmacist for more details. If directed by your doctor, take this medication regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day. Tell your doctor if your condition lasts or gets worse.