<unk> (topical) is a dermatologic agent, keratolytic agent that is FDA approved for the treatment of acne vulgaris; induction therapy of acute promyelocytic leukemia, FAB M3, in patients who are refractory to, have relapsed from, or are not candidates for anthracycline chemotherapy. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include cardiac dysrhythmia, chest discomfort, edema, flushing, peripheral edema, alopecia , dry skin, erythema, injection site reaction, peeling of skin, pruritus, rash, sensation of burning of skin, skin irritation , stinging of skin, hypercholesterolemia, hypertriglyceridemia,  decreased , weight gain, abdominal pain, constipation, diarrhea, loss of appetite, mucous membrane dryness, nausea and vomiting, increased liver function test, bone pain, dizziness, headache, paresthesia, visual disturbance, otalgia, agitation, anxiety, hallucinations, disorder of upper respiratory system, dyspnea, respiratory insufficiency, fever,infectious disease, malaise, pain, and shivering.
Tretinoin 
Alitretinoin
Isotretinoin
Halobetasol
Clobetasol
Clobetasol propionate
Etretinate
Psoralen