Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
The excessive tiredness may arise from taking the overdose of Allergex. Allergex contains
Chlorpheniramine, which is an antihistamine drug. It is used to prevent and relieve symptoms of
hay fever, skin allergies, itchy eyes,
insect bites and stings, as well as swelling that result from allergic reactions.
The adverse effects that may arise are:
• Sedation varying from slight
drowsiness to deep sleep
• Lassitude,
dizziness, and incoordination
Make sure that you used this drug only when symptoms above appear. Don't drive while on this drugs.
Consult with your doctor while continuing.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Nurul Falah