far as Thalassemia
is concerned no antibiotic is contraindicated. You can take any antibiotic which does not cause allergy to you.
But do consult your family physician for your throat pain (or any problem other than Thalassemia). You can take treatment like any other non-Thalassemic, except IRON and Vitamin C (>100mg), which you must be knowing.
You are on penicillin, seems that your spleen has been removed. After splenectomy
, antibiotic (say Amoxicillin
500 with Lacobacilus or Erythromycin
500mg three times a day) must be started in any infection and consult your physician as early as possible