The DTaP and Tdap vaccines both protect against three bacterial infections: diphtheria, tetanus and pertussis, whereas the Td vaccine only protects against diphtheria and tetanus. In addition, the vaccines vary in terms of who should receive them and the quantities of vaccine proteins they contain: 1  DTaP: The DTaP vaccine is given to infants and young children in a series of five shots â at 2 months, 4 months, 6 months, 15 to 18 months, and again at 4 to 6 years of age. Tdap: The Tdap vaccine is different from the DTaP vaccine because it contains lesser quantities of diphtheria and pertussis proteins.
1 To prevent a heart attack, take two low-dose (81 mg) aspirin every day if youâre at risk or over 40.  If you think youâre having a heart attack, take 325 mg of aspirin, and make sure to chew the aspirin before swallowing, because it gets into the bloodstream quicker.
The recommended aspirin dosage for adults varies according to the disease being treated. For adults, to relieve the pain or reduce the fever, the indicated dose of aspirin is between 325 mg and 650 mg every 4-6 hours. The maximum dose per day is 4000 mg, unless you have other recommendations from your doctor. 1  To treat inflammation caused by rheumatoid arthritis, the recommended dose for adults is 975 mg, 4-6 times a day at regular intervals. For treating pains of migraine, the indicated dosage of aspirin for adults is 1000 mg, at the first appearance of pain or symptoms.