Which adverse drug interactions could occur with antiinfectives?
1) Some antibiotics may decrease oral contraceptive efficacy.
2) Antiinfective agents can decrease the effect of oral anticoagulants.
3) Antiinfective agents can increase the effect of oral anticoagulants.
4) Bacteriostatic agents may interfere with bactericidal agents.
5) a, b, and d
6) a, c, and d