Diltiazem HCl CR Oral

In Depth

Generic Name: DILTIAZEM EXTENDED-RELEASE TABLET - ORAL
Pronounced: (dill-TIE-uh-zem)

Diltiazem HCl CR Oral Side Effects

Dizziness, drowsiness, fatigue, nausea and headache may occur as your body adjusts to the medication. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

To minimize dizziness and lightheadedness, get up slowly when rising from a seated or lying position.

Diltiazem may rarely cause constipation. To prevent constipation, maintain a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated while using this drug, consult your pharmacist for help in selecting a stool softener.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur:

swelling of the ankles/feet
shortness of breath
persistent fatigue
fast/irregular/very slow heartbeat
unusual dreams
mental/mood changes
fainting

Tell your doctor immediately if any of these rare but very serious side effects occur:

severe abdominal pain
dark urine
severe or persistent nausea/vomiting
severe constipation
easy bruising/bleeding
yellowing of the eyes/skin
sudden dizziness/fainting
vision changes
seizures

A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include:

rash
itching
swelling
severe dizziness
trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Diltiazem HCl CR Oral Medical Alert

Your condition can cause complications in a medical emergency. For enrollment information call MedicAlert at 1-800-854-1166 (USA) or 1-800-668-1507 (Canada).