Levothyroxine is a synthetic analog of thyroxine (T4), used as a first-line treatment for hypothyroidism, a condition characterized by insufficient endogenous thyroid hormone production. Levothyroxine use in ol
Spread of toxin effects.The effect of botulinum toxin may affect areas away from the injection site and cause serious symptoms, including loss of strength and all-over muscle weakness; double vision; blurred vision; drooping eyelids; hoarseness or change or loss of voice; trouble saying words cl...