Dapoxetine may increase the orthostatic hypotensive activities of Nitroglycerin. If you start on the first day of your period, the pill should be effective right away, and you therefore will not need a back-up method of birth control. Finally, there is a nascent military component to the ALBA. The metabolism of Chlorphenamine can be decreased when combined with Chloroquine. If taking 12 mg/day PO currently: Give 12 mg/day PO. Levothyroxine increases the response to oral anticoagulant therapy.