Hi Dr my wife is a known case of idiopathic pulmonary hypertension she is on iloprost inhaler, diltiazem 120 mg TID & sildenafil 50 mg bid she is 8 week pregnant now we decide to keep the baby we seek your advice about her medication specially diltaze

Very difficult. This is a very specific question that needs to be answered by a pulmonologist with extensive experience treating idiopathic pulmonary hypertension and this is not an appropriate forum because treatment is often highly individualized. If you choose to use HealthTap for this question, then you must at least choose a Concierge visit with a selected Pulmonary specialist. Good luck to you both!