Before taking this product, tell your doctor or pharmacist if you are allergic to trandolapril or verapamil; or to other ACE inhibitors (such as benazepril, lisinopril); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: certain types of heart rhythm problems (such as second- or third-degree atrioventricular block, sick sinus syndrome unless you have a pacemaker, Wolff-Parkinson-White syndrome, Lown-Ganong-Levine syndrome), certain types of heart problems (such as aortic stenosis, heart failure), certain muscle/nerve disorders (muscular dystrophy, myasthenia gravis), history of an allergic reaction which included swelling of the face/lips/tongue/throat (angioedema), blood filtering procedures (such as LDL apheresis, dialysis), liver disease, kidney disease, high level of potassium in the blood.

This drug may make you dizzy. Alcohol or marijuana (cannabis) can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).

Severe sweating, diarrhea, or vomiting may cause dehydration and cause you to feel lightheaded. Tell your doctor if you have severe diarrhea or vomiting. To prevent dehydration, drink plenty of fluids unless your doctor tells you not to.

This product may increase your potassium levels. Before using potassium supplements or salt substitutes that contain potassium, consult your doctor or pharmacist.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

Older adults may be more sensitive to the side effects of this drug, especially dizziness, increases in potassium level, constipation, swelling ankles/feet, and change in the amount of urine (kidney problems).

Tell your doctor if you are pregnant or plan to become pregnant. You should not become pregnant while using trandolapril/verapamil. Trandolapril may harm an unborn baby. If you become pregnant, talk to your doctor right away about the risks and benefits of this medication. See also Warning section.

Verapamil passes into breast milk. It is unknown if trandolapril passes into breast milk. Consult your doctor before breastfeeding.