Yes, you can combine Gravol and Diclectin when dealing with intense nausea during pregnancy. It is recommended to have Gravol suppositories on hand in case you are too nauseous to keep down the Diclectin tablets. It is important to consult with your pharmacist for the appropriate dosage and to follow their instructions carefully. In extreme cases where vomiting and dehydration are a concern, intravenous treatments may be necessary. Remember to prioritize your health and well-being during this time.