The main island of Puerto Rico is the smallest and most eastern of the Greater Antilles. With an area of 3,515 square miles (9,104 km 2), it is the third largest island in the United States and the 82nd largest island in the world.
Answers. Best Answer: SINGULAIR is a prescription medicine approved to help control symptoms of asthma in adults and children 12 months and older and for relief of symptoms of indoor and outdoor allergies. But it is NOT an antihistamine, but rather an antileukotriene medication. Leukotrienes are chemicals released from a variety of allergic and immune cells, and may cause allergy symptoms, primarily nasal congestion.
singulair. It causes asthma (Arizona Cypress, Mesquite and Palo Verde are the culprits.) Singulair has helped me very successfully in the past. However, I also take a very low dose blood pressure medication (Lisinopril 20mg). I do not have health insurance and have an alternative source for medications.ther medicines that can control your asthma, which should be a priority, and not cause tachycardia are inhaled steroids and a class of medicines called leukotriene inhibitors, such as Singulair Â® (montelukast sodium). You should discuss these with your doctor. Good luck. Read More.