If you're taking diltiazem for high blood pressure or heart conditions, it's important to know that drinking alcohol can interfere with how the drug works. You may experience dizziness, lightheadedness, or even fainting if you drink alcohol while taking diltiazem. Your liver and kidneys may also be affected by the combination of alcohol and the medication. To be safe, it's best to speak with your healthcare provider before drinking alcohol while taking diltiazem.

The recommended amount of alcohol to consume while taking diltiazem medication is none.
You should avoid alcohol for at least 24 hours before taking diltiazem medication.

It is generally not recommended to consume alcohol the night before taking diltiazem. Alcohol can increase the side effects of diltiazem, such as dizziness and lightheadedness, and may also interfere with the effectiveness of the medication. It is important to follow your doctor's instructions regarding alcohol consumption while taking diltiazem.

It is recommended to avoid alcohol consumption while taking diltiazem as it can cause adverse effects such as dizziness, lightheadedness, and fainting. Therefore, it is advisable to wait until the medication is out of your system before consuming alcohol. Consult with your healthcare provider for specific instructions.

The elimination half-life of diltiazem from the body is approximately 3.5 to 7 hours.