24 Oct 2009
Yes, it is safe to take doxycycline if you are allergic to penicillin.
7 Dec 2012
Marvell is correct.
Penicillin belongs to a class of drugs called beta-lactam antibiotics. These drugs include penicillin and amoxicillin. They are used to treat many common bacterial infections including skin, ear, sinus and upper respiratory infections.
Penicillin allergy is an overreaction by your immune system to penicillin and other antibiotics in the beta-lactam family and closely related antibiotics.
Doxycycline belongs to a class of drugs called Tetracyclines. Tetracyclines are unrelated to penicillins and therefore safe to take in hypersensitive patients. Other unrelated antibiotics include quinolones (e.g. ciprofloxacin), macrolides (e.g. clarithromycin), aminoglycosides (e.g. gentamicin) and glycopeptides (e.g. vancomycin).
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I take a Eltroxin 50 microgram tablet daily and I am allergic to penicillin.
1 answer • 3 Nov 2010
Had a very bad reaction to doxycycline, felt like my skin was on fire (literally), couldn't let the sunlight hit my skin at all. Terrible... ...
1 answer • 8 Apr 2011
... Z-pack are not touching my acute sinusitis, and I was hoping that doxycycline would. But, I had an allergic reaction to a sulpha drug prescribed ...
1 answer • 4 Feb 2013
I am currently taking penicillin for tonsillitis and glandular fever. My girlfriend is allergic to penicillin, we share a cigarette sometimes. Can we ...
2 answers • 27 Mar 2014
I am allergic to penicillin.
1 answer • 13 Oct 2015