Final answer:
Overdosing and underdosing antibiotics without doctor's consultation can lead to severe side effects and antibiotic resistance.
Step-by-step explanation:
The imprudent and excessive use of antibiotics without a doctor's consultation has resulted in a major global problem of antibiotic resistance. Overdosing on antibiotics can lead to increased toxicity, causing severe side effects. Underdosing, on the other hand, may not effectively treat the infection, allowing the bacteria to develop resistance.
Drug interactions can also occur when using antibiotics without medical supervision. Some antibiotics may interact negatively with other medications, reducing their effectiveness or causing adverse effects. For example, combining trimethoprim and sulfamethoxazole can provide a synergistic effect, but using them without proper guidance can lead to potential harm.