Enalapril belongs to the "angiotensin converting enzyme inhibitor" in antihypertensive drugs, and there are "carbamazepine, Enalapril, Fosinopril, Perdopril and Benazepril" commonly used in clinic. The most common side effect of these drugs in clinical use is cough, which is often manifested as irritating dry cough, itchy throat, light day and heavy night. If this side effect occurs, don't take similar drugs. It is suggested that you use ARB (Fortan, Bayue, Valsartan, Irbesartan) and other drugs for treatment. In addition, you are now using nifedipine sustained-release tablets, and it is not recommended that you use nitrendipine again, because they are all similar drugs, and similar drugs are not combined, which is a basic principle of combined antihypertensive.
Besides, your husband should be young (you can tell from being a mother-to-be). Because he has no obvious family history of hypertension, he is advised to go to the hospital for regular check-ups to get rid of secondary hypertension, and then be treated for life under the guidance of a doctor.
The above answers are simple and for reference only.