Can drugs from similar groups cause issues in heart patients?

Question

Hello doctor,

My father recently had a heart attack and a stroke. He then had two heart valves repaired, and now they want to insert a stent. His list of medications does not seem to make sense, and although he loves his cardiologist, I do not think enough attention is being paid to his care. I am in the medical field, and while I am not a pharmacist or an M.D., I have some knowledge of adverse drug reactions. Could you tell me if this makes sense to you?

The medications listed are as follows:

Metoprolol tartrate 25 mg (half a pill, twice a day).
Potassium Chloride 20 mEq (once daily).
Losartan potassium 25 mg (once daily).
Warfarin sodium 5 mg (once daily).
Atorvastatin 20 mg (once daily).
Digoxin 25 mcg (once daily).
Furosemide 40 mg (once daily).

I need to know if these medications are safe to take all at once, and if so, I would like to split them into two doses per day, considering potential interactions. I feel that taking so many medications with overlapping effects may be redundant, and unnecessary, and could be causing issues.

Please help me.

Answer 1

Hello,

Welcome to icliniq.com.

Let us evaluate all the medications your father is currently receiving.

Diagnosis: Valvotomy, CAD with MI (coronary artery disease with myocardial infarction), and CVA (cerebrovascular accident) – now recovered.

Metoprolol is essential for patients who have had a heart attack, as it slows the heart rate and helps keep the heart healthy. Therefore, we cannot omit this medication. The current dose is already very low, so it cannot be reduced further. Losartan is also essential for people who have had a heart attack, as it is a disease-modifying drug. The dose is already low and cannot be reduced. However, the timing can be adjusted to alternate with Metoprolol (one in the morning, one in the evening). The potential concern is combining Potassium, Losartan, and Digoxin, as this could lead to increased potassium levels, which is dangerous. The potassium supplement may have been prescribed for a short time, but it should be stopped now.

Warfarin is prescribed for stroke prevention. A dose of 5 mg is minimal, and it is necessary for stroke prevention, so it cannot be discontinued. The timing can be adjusted for flexibility. Atorvastatin is used for heart attack prevention and can ideally be taken at bedtime. Furosemide is a diuretic. There does not appear to be a specific reason for its use in your father's case, except possibly to keep blood volume low after the valve surgeries. This can be discussed and potentially removed. If continued, it should ideally be given in the morning.

Regarding Aspirin, it should not be taken alongside Warfarin. If Aspirin is still being taken, it should be stopped, as the combination can lead to excessively thin blood, which increases the risk of brain hemorrhages.

I hope this helps.