As a healthcare professional with expertise in pharmacology, I can provide you with information on the side effects of diltiazem, which is a medication commonly used to treat various cardiovascular conditions such as high blood pressure, angina, and certain heart rhythm disorders. **Side effects of diltiazem can be categorized as follows:** 1. Common Side Effects: - Headache - Dizziness - Lightheadedness, especially when getting up from a lying or sitting position (orthostatic hypotension) - Fatigue - Swelling in the lower extremities (edema) - Nausea and vomiting 2. **Serious Side Effects (requiring medical attention):** - Rapid or irregular heartbeat (palpitations) - Severe dizziness or fainting - Chest pain - Shortness of breath - Allergic reactions (rash, itching, swelling, dizziness, or trouble breathing) 3. Less Common Side Effects: - Constipation - Difficulty in urinating - Flushing (warmth, redness, or tingly feeling) - Gums may become swollen or sore - Loss of appetite - Trouble sleeping (insomnia) 4. Rare but Serious Side Effects: - Severe drop in blood pressure (hypotension) - Heart failure symptoms (such as increased shortness of breath, unusual tiredness) It's important to note that not all people will experience these side effects, and some may be more susceptible to certain side effects than others. If you or someone you know is taking diltiazem and experiences any of these side effects, it's crucial to consult with a healthcare provider. **read more >>

Less serious side effects may include:headache;dizziness, weakness, tired feeling;upset stomach, nausea;sore throat, cough, stuffy nose; or.flushing (warmth, redness, or tingly feeling).read more >>