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Real members of MyHeartDiseaseTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.

For Anyone Taking Diltiazem. What Kind Of Side Effects Do You Experience With It?

A MyHeartDiseaseTeam Member asked a question 💭
San Diego, CA
June 10
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A MyHeartDiseaseTeam Member

I take Diltiazem 300mg in the morning and 180 mg at night. It’s the only heart medicine that works for me with no side effects.

June 11
A MyHeartDiseaseTeam Member

Common side effects of Diltiazem (found in medications like Tiazac and Cardizem) include:

- Dizziness
- Fatigue
- Tingling sensation under the skin
- Nausea
- Upset stomach
- Headache
- Rash
- Itching
- Constipation

Rare but serious side effects can include:

- Congestive heart failure
- Liver damage
- Low blood pressure Show Full Answer

Common side effects of Diltiazem (found in medications like Tiazac and Cardizem) include:

- Dizziness
- Fatigue
- Tingling sensation under the skin
- Nausea
- Upset stomach
- Headache
- Rash
- Itching
- Constipation

Rare but serious side effects can include:

- Congestive heart failure
- Liver damage
- Low blood pressure
- Bradycardia (slowed heartbeat)

For more details, you can visit the respective pages for [Tiazac](https://www.MyHeartDiseaseTeam.com/treatments/t...) and [Cardizem](https://www.MyHeartDiseaseTeam.com/treatments/c...).

June 10
A MyHeartDiseaseTeam Member

I would assume that you stopped taking it.
I stopped taking it because it interact with atenolol, making me feel tired and weak

June 11
A MyHeartDiseaseTeam Member

I took diltiazem and suffered an anaphalactic reaction, laryngeal edema.

June 11

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