Penicillin is the name of the fungus from which the various forms of the drug is derived and is not capitalised.
Aspirin is the brand name for acetylsalicylic acid (the active ingredient which was originally isolated from willow bark (well known for its analgesic effect), but is usually synthesized now); in those countries where it has been registered as a trademark it should be capitalised.
No, except at the beginning of the sentence because it is not a proper noun. But the brand names of the penicillins should be capitalized. Examples: Penicillin VK, Bicillin L-A, Veetids
No, you don't capitalize aspirin because it is a noun. Only capitalize aspirin if it starts a sentence. Generic drug names aren't capitalized and only brand names such as Tylenol or Bayer aspirin are capitalized.
Yes, "I am" is typically capitalized because "I" is a pronoun and should always be capitalized in English.
Yes, it should always be capitalized.
Yes, the word "Tuesday" is always capitalized because it is a specific day of the week.
Yes, when referring to the title of the President of the United States, it should always be capitalized.
Yes, it should always be capitalized.
No, circa does not need to be capitalized.
No, the word "rif" is not always capitalized. It should only be capitalized if it is part of a proper noun or at the beginning of a sentence.
Amoxicillin is in the same family as Penicillin, always consult your Doctor be for taking any medication, it can be harmful if you have allergies or other health issues.Please see related link below.
OK is always capitalized because it is way more formal and palightebdhdbfhrbdhjbvhfdbchvjfbfhjhjfbffhjhjcbjftjfdhdjdffdvdjfgrfdekjsbrgiurhduwjsnjkiuvtfesvfcdvs
Yes it should always be capitalized.