Hi, Ive been prescribed doxycycline 100 mg and lactic acid bacillus capsules for acne for a month. Every time I take them, I feel really giddy, weak, and nauseous to the point where I need to lie down right after. Is this dosage normal or could it be too much for me? Should I be worried or is this a common side effect?

Discuss these side effects with your prescribing doctor. In the meantime, you can try taking doxycycline with food to see if it helps reduce nausea. If the symptoms persist, your doctor may consider adjusting the dosage or switching to a different medication.