How long does diazepam last?

Diazepam, or Valium, is a prescription-only medication, commonly sold under the brand name Valium. It is primarily prescribed to people suffering from anxiety, panic attacks, restlessness, and sleep disorders. Diazepam has a calming effect and relaxes the muscles. As a benzodiazepine, diazepam influences the neurotransmitter GABA, which inhibits activity in overactive brain regions. This leads to the characteristic sense of calm that diazepam provides.

The first effects of diazepam are noticeable within an hour. It initially makes you feel drowsy and calm while relaxing your muscles. Diazepam has a long duration of action, making it a long-acting benzodiazepine. The effects typically last between 8 and 12 hours. Therefore, diazepam is not the best choice as a sleep aid. A shorter-acting benzodiazepine, such as bromonordiazepam, may be more suitable for that purpose. However, diazepam can help you sleep more soundly through the night. When used for an epileptic seizure, diazepam works within 30 minutes. The medication keeps you calm and relaxed for approximately 12 to 24 hours.

Diazepam is mainly known for its calming effects. It helps reduce anxiety, promotes relaxation, and prevents epileptic seizures. It is also frequently used to ease withdrawal symptoms. Diazepam can be used to treat:

• Anxiety (similar to lorazepam)
• Muscle spasms
• Restlessness
• Panic attacks
• Insomnia
• Tension
• Alcohol withdrawal symptoms
• Epilepsy

Diazepam is available only with a prescription because improper or excessive use can cause side effects, including:

• Drowsiness and sluggishness
• Reduced coordination
• Slower reaction times
• Blunted emotions
• Muscle weakness
• Headaches
• Dizziness
• Gastrointestinal issues
• Sweating
• Heart palpitations
• Dry eyes
• Skin rash
• Dependence on diazepam

Due to its long-lasting effects, it is not recommended to consume alcohol shortly after taking diazepam. The combination of diazepam and alcohol enhances the individual effects of both substances, making you feel even more drowsy and sluggish. It can also impair coordination. Diazepam may also interact negatively with other medications, particularly those that affect reaction time. If combined with such drugs, the effects of diazepam can last up to three days.