Salbutamol sulfate 2.5 mg are to be used with a nebulizer, or under the direction of a physician. The solution should not be injected or administered orally. Patients receiving treatment at home with Salbutamol sulfate 2.5 mg must be warned that if either the usual relief is diminished or the usual duration of action was reduced, they should not increase the dose or its frequency of administration, but should seek medical advices. Unnecessary administration of drugs during the first trimester of pregnancy is undesirable.