IRCT20180927041157N1 IRCT 2018-11-10 Hamedan University of Medical Sciences Comparison effect of Lavender and Acetaminophen on Nitroglycerin-induced headache Comparison the effect of aromatherapy with Lavender essential oil versus Acetaminophen tablet on Nitroglycerin-induced headache and comfort in the patients with angina pectoris in Cardiac Care Units 2018-10-23 anticipated 90 Complete https://irct.ir/trial/34181 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Randomization description: Samples will be selected by simple sampling method and in the form of permutable blocks ABC-ACB -BCA -BAC -CAB -CAB is randomly assigned to three groups (Acetaminophen, Lavender essential oil and control). 3 Angina. Intervention 1: Intervention Group: The Acetaminophen Group: Oral Acetaminophen (500 mg) of the Alborz Drug Company is prescribed by the physician as needed(PRN), which is given to a patient 15 minutes prior to the onset of nitroglycerin infusion. Intervention 2: Intervention group: Lavender group: In this group, cotton dusted with 3 drops of 2% non-fatty lavender essential oil prepared from, Tabib Medical Company 15 minutes before the onset of nitroglycerin infusion, is attached to the collar and will be washed by the patient. Intervention 3: Control group: Only common care will be taken to treat headache caused by nitroglycerin infusion. Yes - There is a plan to make this available What will be shared: The total data after unidentifiable participants can be shared. When: After the end of the study To whom: Researchers working in academic centers Conditions: For the treatment of patients Where to obtain: Email address How to obtain: Requesting information is possible through the author's email at the end of the study. Comments: