
Tiazac is a medication used to treat hypertension (high blood pressure) and angina (chest pain). It is also used to treat certain heart rhythm disorders. The active ingredient in Tiazac is diltiazem, which belongs to a class of medications known as calcium channel blockers. While Tiazac can be effective in treating these conditions, it is important to be aware of its potential side effects, which can include muscle and joint pain. In this article, we will explore the long-term effects of Tiazac use and discuss whether prolonged use can lead to muscle and joint pain. We will also provide information on the other side effects associated with Tiazac and offer guidance on when to seek medical advice.
| Characteristics | Values |
|---|---|
| Tiazac | Used to treat hypertension (high blood pressure) and angina (chest pain) |
| Side effects | Muscle pain, muscle cramps, muscle weakness, osteoarticular pain, neck rigidity, joint pain, allergic reaction, asthenia, CPK increase, crystalluria, dyspnea, edema, epistaxis, eye irritation, headache, hyperglycemia, hyperuricemia, impotence, nasal congestion, nocturia, polyuria, rhinitis, sexual difficulties, gynecomastia, nausea, fluid retention, dizziness, heart rate or rhythm changes, low blood pressure, severe skin reactions, blurred vision, vision loss, tunnel vision, eye pain or swelling, seeing halos around lights, fast, irregular, or pounding heartbeats, fluttering in chest, shortness of breath, sudden dizziness, lightheadedness, passing out, severe headache, confusion, slurred speech, arm or leg weakness, trouble walking, loss of coordination, feeling unsteady, very stiff muscles, high fever, profuse sweating, tremors |
| Serious side effects | Serious skin reactions (e.g. Stevens-Johnson syndrome, toxic epidermal necrolysis), serious eye symptoms, serious heart symptoms, severe allergic reactions, liver damage, signs of heart problems, signs of liver problems, symptoms of high blood sugar, symptoms of kidney failure, signs of a serious allergic reaction, signs of a severe skin reaction |
| Contraindications | Very low blood pressure, serious heart conditions such as "sick sinus syndrome" or "AV block" (unless you have a pacemaker), recent heart attack with a build-up of fluid in the lungs, kidney disease, liver disease, congestive heart failure |
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What You'll Learn

Tiazac can cause liver damage
Tiazac is a brand-name extended-release prescription drug that treats primary hypertension (or high blood pressure) and angina (chest pain). Its active ingredient, diltiazem, is a calcium channel blocker. It reduces the strength of the heart's contractions and relaxes and widens the blood vessels.
Tiazac may cause impaired thinking or reactions. It may also cause dizziness, weakness, headache, nausea, or rash. Serious side effects may include heart rate or rhythm changes, low blood pressure, and severe skin reactions.
Diltiazem may rarely cause liver damage, also called hepatotoxicity. If you experience any of the following symptoms of liver damage, call your doctor right away:
- Fatigue
- Feeling unwell
- Loss of appetite
- Nausea
- Yellowing of the skin or whites of the eyes (jaundice)
- Dark urine
- Pale or clay-coloured stools
- Abdominal pain or swelling
- Itchy skin
Your blood pressure and liver function will need to be checked often while taking Tiazac. If you have high blood pressure, keep using this medicine even if you feel well. High blood pressure often has no symptoms.
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Tiazac can cause allergic reactions
Tiazac (diltiazem hydrochloride) is a calcium channel blocker used to treat hypertension (high blood pressure), angina (chest pain), and certain heart rhythm disorders. It works by relaxing the blood vessels so the heart does not have to pump as hard. Tiazac also increases the supply of blood and oxygen to the heart.
While Tiazac can be an effective treatment for these conditions, it is important to be aware of its potential side effects, which can include allergic reactions. Although rare, allergic reactions to Tiazac can be serious and require immediate medical attention. Symptoms of an allergic reaction to Tiazac may include:
- Hives
- Itching
- Swelling of the face, throat, or tongue
- Chest tightness
- Trouble breathing
- Blistering and peeling of the skin
- Fever
- Sore throat
- Burning eyes
- Skin pain
- Red or purple skin rash
If you experience any of these symptoms, it is crucial to seek emergency medical help. Do not wait to see if the symptoms subside, as allergic reactions can progress rapidly and become life-threatening.
In addition to allergic reactions, Tiazac can also cause other side effects such as dizziness, lightheadedness, fainting, weakness, headache, nausea, and rash. It is important to discuss any concerns with your healthcare provider and report any side effects to them. They may adjust your dosage or recommend alternative treatments if needed.
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Tiazac side effects include eye irritation
Tiazac (diltiazem hydrochloride) is a calcium channel blocker used to treat hypertension (high blood pressure), angina (chest pain), and certain heart rhythm disorders. It is available in the form of extended-release capsules, which should be swallowed whole and not crushed or chewed.
Tiazac has several side effects, and it is important to be aware of these and consult a doctor if any occur. One of the known side effects of Tiazac is eye irritation, which can include symptoms such as burning eyes, red eyes, or eye pain. Other possible side effects include:
- Skin reactions such as blistering, peeling, or loosening of the skin, itching, and red skin lesions.
- Joint or muscle pain, stiffness, or weakness.
- Allergic reactions, including hives, difficulty breathing, and swelling in the face or throat.
- Liver damage, with symptoms such as fatigue, loss of appetite, nausea, and abdominal pain.
- Heart problems, including irregular heartbeat, chest pain, and leg swelling.
- Confusion, slurred speech, and loss of coordination.
- Serious eye symptoms such as sudden vision loss, blurred vision, tunnel vision, or seeing halos around lights.
It is important to note that this list is not exhaustive, and individuals taking Tiazac should always consult their doctor or pharmacist if they have any concerns or experience any unusual symptoms. Additionally, Tiazac should be taken exactly as prescribed, and any changes to the dosage should be made by a doctor.
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Tiazac may cause muscle pain and weakness
Tiazac (diltiazem hydrochloride) is a calcium channel blocker used to treat hypertension (high blood pressure), angina (chest pain), and certain heart rhythm disorders. It is available in the form of extended-release capsules, which should be swallowed whole and not crushed or chewed.
While Tiazac can be an effective treatment for these conditions, it may cause several side effects, including muscle pain and weakness. Muscle pain and weakness are reported side effects of Tiazac, along with muscle cramps and osteoarticular pain. It is important to note that the frequency of these side effects is not specified in the available literature.
If you experience muscle pain or weakness while taking Tiazac, it is advisable to consult your doctor or healthcare provider. They may adjust your dosage or provide guidance on managing these side effects. It is essential to follow your doctor's instructions and read the medication guides or instruction sheets provided with your prescription.
Additionally, Tiazac may cause other side effects, including joint pain, skin rash, sore throat, and unusual tiredness or weakness. In rare cases, it may also cause liver damage or serious eye problems, such as vision loss or blurred vision. If you experience any severe or persistent side effects, seek medical help immediately.
It is important to be vigilant about any changes in your body and to prioritize your health and well-being. Always consult your healthcare provider if you have any concerns or questions about your medication.
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Tiazac can cause joint pain
Tiazac (diltiazem hydrochloride) is a calcium channel blocker used to treat hypertension (high blood pressure), angina (chest pain), and certain heart rhythm disorders. It is available in the form of extended-release capsules, which should be swallowed whole and not crushed or chewed.
- Muscle pain and cramps
- Neck rigidity
- Confusion
- Slurred speech
- Trouble walking
- Loss of coordination
- High fever
- Chills
- Cough
- Diarrhea
- Skin rash
- Sore throat
If you experience any of these side effects, it is important to consult your doctor right away.
In rare cases, Tiazac may also cause liver damage, so it is important to be aware of symptoms such as fatigue, loss of appetite, nausea, and yellowing of the skin or eyes. Additionally, as Tiazac works by acting on the heart muscles and blood vessels, it is crucial to monitor for signs of heart problems, including fast or irregular heartbeat, chest pain, sudden weight gain, and difficulty breathing.
It is always important to take Tiazac as prescribed by your doctor and to follow the directions on your prescription label. Your doctor may adjust your dosage from time to time, depending on your response to the medication.
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Frequently asked questions
Joint pain is a possible side effect of Tiazac, but it is not known how frequently this occurs. If you experience joint pain, check with your doctor right away.
Muscle pain is a possible side effect of Tiazac, but it is not known how frequently this occurs. If you experience muscle pain, check with your doctor right away.
Tiazac may cause serious skin reactions, such as blistering, peeling, or a red skin rash. It can also cause serious eye symptoms, such as vision loss, blurred vision, or eye pain. Tiazac may also cause serious heart symptoms, such as a fast, irregular, or pounding heartbeat, and severe allergic reactions.











































